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Windows 8.1 Update 1 build 9600.16610 2014 MSU files KB2919355 and KB2919442 for x64/x86

Windows 8.1 Update 1 was reportedly delayed by Microsoft until April, but that doesn’t necessarily mean that the company would stop work on the first Windows 8.1 pack of improvements .As Redmond continues to improve the update, more leaks are reaching the web
Windows 8.1 Update 1 had hit RTM Escrow, which means development has stopped and finalizing has begun. Everything is now in place for Update 1 and no new features are set to be added.

The build is 9600.16610 and the MSU leak requires you to perform an update to an existing, fresh RTM install with all applicable updates applied.
Windows 8.1 Update 1 build 9600.16610 MSU leaked by WZOR (both 32 and 64-bit) and shared in some p2p websites as you can see below.

At the moment, the leak pertains to x86 and x64. There will likely be a separate update for ARM platforms. Update 1 for Windows 8.1 features a host of minor tweaks and improvements, including updated taskbar functionality, Modern UI changes and much more.

While details are very scarce for the time being, we should expect only minor changes as compared to the first leak that went online last week, as Microsoft is most likely trying to improve performance and fix some of the bugs in the first builds.

How to Enable Aero Glass in Windows 8.1 Update 1

We all know that Microsoft has added a new theme "Aero Lite" in Windows 8 testing builds which is considered as a replacement for existing "Windows Basic" theme in Windows Vista and 7.

and as you know The latest build of Windows 8.1 Update 1 has leaked, revealing many of the changes that Microsoft hopes will make Metro less painful for desktop users.

If you were a fan of the Aero visual style on Windows 7 and Vista with transparencies, blur, glow and other fancy effects, you would surely have missed it on Windows 8 and Windows 8.1. Many people were disappointed that the sleek, transparent glassy look of Windows 7 with rounded corners, glossy buttons and blur was gone in Windows 8 and replaced with flat, opaque colors without even as much as a gradient to make things look nicer. Well, you can have it back on Windows 8.1.

Steps to Enable Aero Glass in Windows 8.1 Update 1

 1-WIN+R and type regedit
go to the following directory: HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows
-right click on 'Windows' and select New > Key and name it DWM.
create a Dword 32bit values and name it HideBlur.
change the value to 1.
6-Restart and voila

How to pin Modern apps to the Taskbar in windows 8.1 update 1

Following weeks of speculation and rumors, a purported early build of  Update 1 for Windows 8.1 has leaked online and available on a number of file sharing sites and our website too. The download reveals a lot of the features we’ve been hearing about since Update 1 screenshots started appearing. The update itself is expected in March or April.

Known internally as “Windows Build 6.3.9600.16596.WINBLUES14_GDR_LEAN.140114-0237”, the leaked build is an internal development variation that is considered “Microsoft Confidential”.

Taking a closer look at the system,window captures do reveal Windows 8.1 Pro with the April “Update 1”. The most fascinating part of the this build though, is the Windows Store button pinned to the taskbar.and to do so you just need to Right-click on any apps then pin to taskbar,and if you want to unpin it Right-click then chose Unpin from taskbar

We will keep you updated with further news about Windows 8.1 Spring Update 1 and its features. You may visit our Windows 8.1 Update section  or windows 8.1 Tutorials for more updates about this upcoming free update for Windows 8.1.

How to show or hide store apps on the taskbar on windows 8.1 update

There have been lots of rumors about what to expect from Microsoft’s forthcoming Windows 8.1 update 1, including that it will allow users to pin Windows Store apps to the taskbar -- a time saving tweak for anyone who avoids the Modern UI but still likes to use apps from time to time. So is it true, and what other tweaks has Microsoft made to its tiled OS?

Today, a preview build of Windows 8.1 Update 1 leaked to the Internet. Windows 8.1 Update 1 is a rollup of several updates as well as some new features which Microsoft plans to offer to Windows 8.1 users. While this update has nothing new of significance for regular Desktop users, it contains few notable changes to the Modern UI, the way it integrates with the Desktop and to Internet Explorer 11. I have successfully installed the leaked '6.3.9600.16596.WINBLUES14_GDR_LEAN.140114-0237' build inside the latest VirtualBox

Taskbar support for Modern Apps: Using the updated Taskbar settings, you can enable this feature so that running Modern apps show on the Taskbar,you just need to Right-click any empty space on the taskbar and click Properties. That opens up the familiar-looking Taskbar And Navigation Properties dialog box.

 Again, this is nothing exciting. The ability to show any running apps on the taskbar is a basic feature of Windows since Windows 95 and so this is how it should always have been even for Store apps. Surprisingly, in this build, when you switch to the Modern app using the Taskbar button and start working in the app, the Taskbar hides automatically and does not show again even if the pointer touches the bottom edge of the screen.
Microsoft is expected to make the Update 1 available to developers on March 11th before BUILD 2014

How to Run Windows 7/Vista/ XP Programs on Windows 8.1

Microsoft released its long-awaited Windows 8.1 upgrade as a free download started on Thursday 17/10/2013. It addresses some of the gripes people have had with Windows 8, the dramatically different operating system that attempts to bridge the divide between tablets and PCs.
But now It appears that Windows 8.1 will get an upgrade ahead of Microsoft's Build developer conference in April.
Leaked screenshots from earlier this week revealed Microsoft was working on an update for Windows 8.1.called Windows 8.1 Update 1, is "relatively minor", and will supposedly release on 11 March via the Windows Update tool.

Before the release of windows 8.1, you may used Windows 8, Windows 7, Windows XP or any version which is lower than Windows 8.1. Then, you decided to shift your operating system to Windows 8.1. After changing your OS, you may got some problem about installing the Windows7/XP software in your new Windows 8.1.Today i will show you  how to run the Windows 7/XP programs on Windows 8.1 without replacing any software or apps. This method will works for very one who is using Windows 8.1.

 Right Click the Program which you want to install in Windows 8.1 and select Troubleshoot Compatibility

 In the next step select the Try Recommended Settings and this will allows windows 8.1 to choose automaticaly the program to run.

 Select Test the program and this will install in the required windows 8.1 requirement and makes the program to run smoothly without any problem.

and if you are interested about windows 8.1 software you can download theme from here

StartBar8 for windows 8/8.1 mix Between Classic Desktop and Modern UI

Windows 8 splits the user interface into two parts. The new tiles and the older "desktop" minus the start the 'old fashioned' desktop, and the new 'modern' interface, with the new start screen, and the new apps running in the foreground all the time.

Mostly you have already realized that you need to get used to those two separate interfaces which are somewhat locked from each other, especially when it comes to switching between them.

It requires a few mouse clicks, switches and turns to quickly access something on the desktop while on the modern interface, and get back to an app, although you simply wanted to check for a specific file, a system setting, or start a desktop program.

With StartBar8 a lot of your daily life is much easier in Windows 8!

Yes, StartBar8 is in the true sense of the word 'on top of everything'. To be on top means in this case that StartBar8 can be accessed both from the classic Windows desktop, as well as from the new modern user interface, like the start screen, or any modern app.

Whenever you need access to classic Windows features, but don't want to switch to the classic desktop, move your mouse to the left side of your screen and StartBar8 will be there for you, giving you access to customizable start tiles, a start menu, a file explorer, and a lot more. All from within StartBar8, without the need to switch between multiple windows, or leaving the modern user interface, or any app of Windows 8.

Running on top of all Windows 8 screens, apps, the classic desktop, and classic Windows applications
Fully configurable start tiles
Side bar with configurable start buttons
A real, fully featured start menu
A real, fully featured file explorer
A personal libraries explorer
Access to recently used files
Access to recently used programs
Access to network resources and network configuration
Direct access to all control panel features
Context menu support for almost all features
Configurable to your personal preferences
Pre-set color schemes (dark, light, modern)
Pre-set start tile actions
More than 120 icons included
Online update with auto update installation (registered edition only)
Multi lingual user interface (English and German, more to come soon)

Change Info:
Service release fixing a few minor issues

14 Day Trial
Download StartBar8

How to get gadgets in Windows 8.1

One glaring omission from Windows 8 is the absence of gadgets and sidebars. There are those that are okay with with but there are people who feels that their computer is not complete without these gadgets and sidebars. With Desktop gadgets and sidebar for Windows 8.1, you can now put gadgets and sidebars in your Windows 8.1 computer. This program features various gadgets like calendar, clock, CPU Meter, weather and more.

Users who aren’t very serious about the security and users who’re not aware of the reason for this move, have been complaining about the lack of desktop gadgets in Windows 8 and Windows 8.1.
Remember Desktop Gadgets, those cool little gadgets floating on your desktop or sidebar back in Windows Vista or Windows 7? Well, they are unofficially back for Windows 8 and Windows 8.1 thanks to a third party. However, use it at your own risk.

Installing 8Gadgetpack adds a sidebar to the Desktop in Windows 8.1 to which you can add gadgets you had in Windows 7 without having to download them again.

Download 8Gadgetpack using the link at the end of the article. 8Gadgetpack must be installed as administrator. Because the installation file is an MSI package, you must add an Install as administrator to the context menu in Windows Explorer.

Once you have added the Install as administrator option, right-click on the .msi file and select the option.
Download 8Gadgetpack

How to fix Blurry or fuzzy text on windows 8.1

If you have Windows 8 or Windows 8.1 installed on your PC and have noticed that the text is sometimes slightly blurry, you may not need a new pair of glasses. There have been a number of reports on Microsoft's support forums during the past several months of users claiming they have experienced blurry text and fonts while using Microsoft's latest operating system.

Some improvements in the Windows 8.1 DPI Scaling system is the culprit. Microsoft has added a new option to apply scaling levels to all connected displays in screen resolution settings, but the option is turned off by default.
So if you want to fix this issue (work around till Microsoft releases a fix) go to:

1. Control Panel > Display (you might have to turn on View all Control Panel Items)

2. Tick “Let Me Choose one scaling level for all my displays
3. Click on Apply (you will need to log-off and log-in again for the changes to be applied

How to fix Wireless display Miracast support in Surface Pro

Microsoft broke Miracast for Surface Pro (original) users on Windows 8.1. They have not officially commented on this or provided any information on a fix. As pointed out on Twitter by Rafael Rivera, you can work around this by disabling and re-enabling your WiFi connection. Every time you want to use it

First you need to install latest drivers for all three devices, including Processor, Graphics and Wireless Adapter firmware. For Intel devices, download the drivers from website.

1- To get start the job, use the Xbox Video app to play the video, open Charms and select Devices > Project. I can confirm these tablets work well with PTV 3000 without any problems, such as Surface Pro 2, Dell Latitude E6430s, E6330, E6320 models. If the Miracast cuts out off the projected display, you could go into PTV settings mode and adjust overscan.
2-If the method don’t take any affect, go to toggle W-Fi network off and on again without rebooting.

if this not working then you need to update your surface firmware to the last one

How to Disable Help Sticker in windows 8.1

The much anticipated Help & Tips app rolls out with Windows 8.1 and not an update too soon. This was a feature sorely missing from Windows 8, and it will help users learn to use the OS more efficiently from day one.  If you’re not sure where to dive into Windows 8.1, you’ll know right from the start with the addition of help stickers.  However, unless you listen to the help stickers that pop up, they get rather annoying.

  • Use Windows+R to bring up the run box on the system.
  • Type regedit and hit the enter key afterwards.
  • Use the sidebar to navigate to HKEY_CURRENT_USER\Software\Policies\Microsoft\Windows
  • Right-click on Windows and select New > Key from the context menu.
  • Name the new key EdgeUI.
  • Right-click the new EdgeUI key afterwards and select New > Dword (32-bit value).
  • Name it DisableHelpSticker.
  • Double-click the new Dword afterwards and change its value from 0 to 1.
  • Restart the PC.

How to Adjust Search Settings in windows 8.1

The enhanced Smart Search in Windows 8.1 commingles results from your PC, SkyDrive and the web, providing universal search functionality with the power of Windows. Microsoft bills this functionality as more efficient and intuitive, but it's also a bit controversial and not for everyone. Fortunately, you can configure how Smart Search works. And you can even turn it off.

How to change how Smart Search works

To configure Smart Search, you need to visit PC Settings, the new Metro-based replacement for Control Panel, and navigate to Search and Apps, and then Search.

Use Bing to Search Online. Enabled by default, this option determines whether Bing-driven web results appear in the Search results page. If you set this to Off, you will no longer see these results (and will only see Everywhere, Settings, and Files as options in the Search pane). So my Paris search from before looks like so, offering just local results:
Your Search Experience. This option—available only when Use Bing to Search Online is set to On—determines whether Bing personalizes its search results for you and for your location. If you're going to leave Bing searching enabled, I recommend leaving this on its default: Get Personalized Results From Bing That Use My Location.

SafeSearch. As with browser-based web searches, this settings determines how much adult content is filtered out of search results. As with the previous setting, this is available only when Use Bing to Search Online is set to On.

How to Boot to the UEFI BIOS in Windows 8.1


The Windows 8.1 tablet or PC users having a UEFI BIOS might have encountered that booting to the BIOS no more works like it used to be on classic desktop PCs. But Windows 8.1 provide a way for both the touch and keyboard users to boot their device.

If you own a Microsoft tablet then you have some more buttons that you can use to boot quiet fast to BIOS. Here we are going to see how to use all of them to boot Windows 8.1 device to BIOS.

Use the following steps to access the UEFI firmware settings from within Windows.
  • Press the Windows key + C to open your Charms..
  • Select the Settings charm, and then click Change PC settings..
  • Click Update and recovery.
  • Select Recovery and then click Restart now beneath Advanced Startup.
  • After a moment the Choose an Option screen will appear.
  • On the Choose an Option screen, select Troubleshoot, then click Advanced options.
  • Click UEFI Firmware Settings, then click Restart. Your system will restart and enter the UEFI.
following steps to access the UEFI :video

How to enable hyper-V in Windows 8.1


Hyper V, Microsoft's virtual machine software has, for the first time, been incorporated in the Windows Client software. Prior to Windows 8 Hyper V had been packages only with the Windows Server versions.

Windows 8.1 has brought a wide range of features and functions for the users of previous versions of Windows, but the users are still baffling because they can’t find some very important features they were using previously with older versions of Windows. Hyper-V is one of them and it is not activated by default in Windows 8.1.

1-On the Metro screen touch the Control Panel App.
2-When the Control Panel opens scroll down the list of options until you come to More Setting.
3-Click on More Settings and Control Panel will open.
4-In the Control Panel Window, Click on the Program and Features option
5-In the Program and Features Window look to the left of the Window and under Control Panel Home you will see an option marked Turn Windows Features On or Off.
6-Click on the Turn Windows Features On or Off to open up the next window.
7-The Windows Feature window will now appear.
8-Look down the list of options and place a Check Mark (Tick) next to the Hyper V option.
9-Next Click the OK Button.
10-An Applying changes to features box will now appear.

11-Once the changes have been implemented you will see a window which states that Windows successfully completed the requested change.
12-At this point you will need to Restart your PC.
13-Click the Restart Now button to continue.

How to refresh Windows 8.1 after Upgrade even with Some files are missing error

The new Windows 8 Refresh tool enables you to get Windows 8 to reinstall itself onto your computer. And while installing a fresh copy of itself, Windows 8 saves your user account, your personal files, your apps downloaded from the Windows Store, and some of your most important settings.

Choosing Refresh saves settings from your wireless network connections, as well as from your cellular connection, if you have one. It also remembers any BitLocker and BitLocker-To-Go settings, drive letter assignments, and personalization settings, including your lock screen background and desktop wallpaper.

But many windows are Unable to perform Refresh after upgrading to Windows 8.1 via the app store.
refresh my PC. However, when they went through the Refresh process they got the message "Some files are missing. Your Windows installation or recovery media will provide these files". and when they put the original Windows 8 installation disc. It comes up with the message "The media inserted is not valid"

How to refresh Windows 8.1 after Upgrade even with Some files are missing error:

1. Move your mouse to the lower left corner of the screen and right click to open the Power Menu.
2. Move your mouse up to Command Prompt (Admin) and left click it to open a command prompt with Administrator privileges.
3. Click Yes on the User Account Control warning dialog box to approve the use of the Command Prompt with Administrator privileges.
4. When the Command Prompt window opens you will see a flashing cursor after C:\WINDOWS\system32>. At the flashing cursor you want to type mkdir C:\RefreshImage (M K D I R {space} C {colon} {backslash} R E F R E S H I M A G E) followed by pressing the Enter key. This will make a new directory named RefreshImage at the root of your C: drive. (Note: The above location C:\RefreshImage is an example – you can create the folder and image on any storage device by changing the location of the command, but remember the device must be available for the PC Refresh to be successful.)
5. Type recimg -CreateImage C:\RefreshImage (R E C I M G {space} {dash} C R E A T E I M A G E {space} C {colon} {backslash} R E F R E S H I M A G E) at the flashing cursor followed by the Enter key. This will begin the process of creating a new Refresh Image in the new directory we created above.
6. Windows will create a snapshot, which won’t take very long at all, before writing the file to the C:\RefreshImage directory. The actual writing of the file to the hard drive will take a while, so be patient.
7. After the image is written to the hard drive you will receive confirmation and the new image will become the default image for the PC Refresh function. If you open a File Explorer window you’ll find your new image in the RefreshImage folder on your C:\ drive.

How to fix:Mouse and keyborad stopped working in windows 8.1

Some users are reporting that their keyboards and mice stopped working after installing Windows 8.1, but Microsoft is yet to release a workaround or a patch to address this issue.

At the first glance, it could all seem like a problem caused by incompatible drivers, but it turns out that installing the latest version of the drivers does not make any difference.

that worked for me....Go into the advanced mode in the UEFI bios and disable Intel XHCI Mode. Once you do this all your USB devices will work.

In case these settings are missing from your computer, make sure that you are running the latest BIOS version for your PC.

How to fix: facebook video call not working in windows 8.1

For many people, the Facebook video calling/chat button just has been disappeared with Windows 8.1 updates.Currently you can make face-to-face video chat with friends though the Facebook webpage. The function worked fine in Win 8, but it just stop working after upgraded to Windows 8.1 .

This issue may occur due to compatibility or you need to change any settings in Facebook or on the web browser.

Method 1:
Step 1:
If you are using Internet Explorer, then try the following steps and check:
You may refer to the article to add check in compatibility view settings.
Fix site display problems with Compatibility View

Step 2:
You may try to clear the browser cache and check.
If you are using Internet Explorer, then try the following steps to clear the cache:
You may try deleting the temporary internet files and check if it helps.

a. Open Internet Explorer on desktop.
b. Press Ctrl+Shift+Del, select and delete your temp files, cookies and browsing history.

Method 2:
Also make sure you have install the latest version of graphic card and other device drivers referring to the computer manufacturer website and also check Windows Updates for optional driver updates.

Another workaround is to use Chrome or Mozilla.1. Simply right-click on the google chrome launch icon.
2. Select Properties from the pop-up menu.
3. Go to the compatibility tab, choose “Windows 8″ from the list, and click Apply > OK.

if ttese doesn't work for you you just need to wait because Video calling is not currently available on: Windows 8.1
Hope this information helps. If you need any further assistance or information on this issue, reply back to this post. I will be glad to help you.

How to disable Get Windows 8.1 for free screen notification

It may make sense to install Windows 8.1 from scratch but if you spent a lot of time configuring Windows 8, you may think twice about going to Windows 8.1 just yet - as it is closer to a complete reinstall than an update,If you have older programs running - they may run fine under Windows 8 but not Windows 8.1.

So to disable this:

Method 1:
Disable Get Windows 8.1 for free prompt by uninstalling KB2885699

Go to Control Panel > Uninstall a program > View installed updates > Scroll down to and uninstall KB2885699:

Method 2:

1. Press "WIN+R" keys together to launch RUN dialog box and type gpedit.msc and press Enter. It'll open Group Policy Editor.

2. Now go to:
Computer Configuration -> Administrative Templates -> Windows Components -> Store

3. In right-side pane, double-click on "Turn off the offer to update to the latest version of Windows" option and set its value to "Enabled".

That's it. It'll immediately disable the Windows 8.1 free update notification in Windows 8 and you'll never see it again. If you want to enable the notification again in future, set the value to Not configured.

Ultimate Windows Tweaker for windows 8.1

Ultimate Windows Tweaker is a Tweak UI Utility for tweaking and optimizing Windows 8 and 8.1, 32-bit & 64-bit. It can simply be downloaded and used as a portable application to customize your Windows 8 as windows 8.1 to meet your requirements. With judicious tweaking, It can make your system faster, more stable, and more secure with just a few mouse clicks

While Windows 7 & Windows Vista users should continue to use Ultimate Windows Tweaker 2.2, Windows 8 and Windows 8.1 may be happy to know that your favorite freeware Windows tweaker is now available for download.

With judicious tweaking, it can make your system faster, more stable, personal and more secure with just a few mouse clicks.

While you may be able to access all these via the Windows 8.1 UI or the Group Policy or Registry Editor, Ultimate Windows Tweaker makes things easier for you by offering all useful tweaks from its single UI. Hover over any tweak and helpful tool tips will tell you what the tweak does. All the tweaks have been neatly categorized as follows:

System Information
When you open UWT you will get to see some basic information about your system like Operating system version, Build, System Type, Processor, Installed RAM, Computer name, User name and the Windows Experience Index or the WEI Score even in Windows 8.1! You also have a button that let you quickly open Recovery Options if you need to restore your computer to some system restore point, and a button that lets you run the System File Checker with a click, so that you can check your system files and replace the corrupted or modified one’s with the default files.

Under this category you will be able to tweaks settings of your Taskbar, Thumbnails, File Explorer and the Modern or Metro UI. Some additional tweaks are also offered in a separate tab. Under the Modern UI tab, you will see some cool animation tweaks too.

User Accounts
Under the User Accounts tab, you will be able to change your User Account settings, Logon information and sign in options. You can also change the User Account Control settings here.

Performance tweaks
The Performance tab offers tweaks to optimize Windows 8.1 to best suit your requirements. While most of these settings are best left at their default values, this panel gives you quick access to change them, should you wish to. Just make sure that you know, what you are doing, and don’ t tweak for the sake of tweaking.

Security tweaks
Harden your Windows 8.1 by changing some settings. If you want to restrict access to some Control Panel applets or to some Windows feature, these tweaks will allow you to do so easily.

Internet Explorer tweaks
Tweak your Internet Explorer 10 or Internet Explorer 11 when you open this section. Tweak IE’s appearance and behavior. There are really nice tweaks here that will allow you to control the behavior of Internet Explorer.

Additional system tweaks
Under this category, you will see some additional system  and Network tweaks. You can also set UWT to behave the way you want it too. By default, when you apply a tweak and click Apply, UWT 3 will automatically restart explorer.exe to apply the tweak. Change its behavior if you wish.

About tab
Here apart from the License Agreement, you will see some useful links. If you need to submit bugs, visit the About page and use the Submit Bugs link. If you need support, you can use the Support link or visit our TWC Forum. Clicking on the Check for Update button will inform you if any updates are available. You can then visit the home page to download the latest version.

I am sure that you will find the tweaks which Ultimate Windows Tweaker for Windows 8 useful!
Download Ultimate Windows Tweaker for windows 8.1 by

How to revert back to windows 8 from 8.1?

 I think Windows 8.1 is a pretty good operating-system update. But it's also an operating-system update — meaning that it can get tripped up by hidden software conflicts that don't arise when upgrading individual apps.

Unfortunately, Win 8.1 is also much harder to undo than other operating-system updates. Contrary to what its "point release" number might suggest, 8.1 is not some minor update you can roll back through the Windows Update control panel. And it's more difficult to roll back through the other usual mechanism in Windows, a system-recovery process.

If you decide that you want to install Windows 8.1 Preview using the ISO, you won't be able to uninstall it. If you decide to go back to your previous operating system, you'll need to reinstall it using the recovery or installation media that came with your PC, which is typically DVD media. If you're running Windows 8 and you don't have recovery media, you might be able to create a USB recovery drive. If you're running Windows 7, Windows Vista, or  Windows XP and you don’t have recovery media, you might be able to create it from a recovery partition on your PC using software provided by your PC manufacturer. Check the support section of your PC manufacturer’s website for more information. After you install Windows 8.1 Preview, you won’t be able to use the recovery partition on your PC to go back to your previous version of Windows.

Download Windows 8.1 pro iso file:Direct links

Microsoft released Windows 8.1 which it is a major update for Windows 8. This update is officially launched at last quarter of 2013. But at the moment its great opportunity to preview this Windows 8.1 release. You can download Windows 8.1 pro disk image ISO files and install them on your machines.  links are provided at the bottom of this post.
Volume license customers and subscribers to MSDN Plus and TechNet Plus were initially unable to obtain the RTM version upon its release; a spokesperson stated that the change in policy was to allow Microsoft to work with OEMs “to ensure a quality experience at general availability.” However, after criticism, Microsoft reversed its decision and released the RTM build on MSDN and TechNet on September 9, 2013.
Unlike previous Windows service packs, Windows 8.1 is obtained as a download through Windows Store for users of retail or OEM copies of Windows 8 and RT. Users of Windows 8 Enterprise edition, volume licensing customers and MSDN or TechNet subscribers must obtain Windows 8.1 as new installation media, and install it through the traditional Windows installation process. In any case, versions of Windows 8.1 distributed as ISO images do not accept Windows 8 product keys.
Please we don't provide serials or keys...and don't put any one in a comment below...Thank you.