How to activate Windows 8.1 Pro Preview Build 9431
If you have installed Windows 8.1 Pro Preview Build 9431 on your computer and want to activate it, you may encounter some difficulties. This is because Windows 8.1 Pro Preview is an evaluation version of Windows 8.1 that expires on January 15, 2014[^1^]. Therefore, you cannot use the regular product keys or activation methods for Windows 8.1 Pro.

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However, there are some possible ways to activate Windows 8.1 Pro Preview Build 9431 without using a crack or a keygen. Here are some of them:

Upgrade to Windows 8.1 operating system. If you have upgraded to Windows 8.1 Pro Preview from Windows 8 or Windows RT, you can update to the final version of Windows 8.1 for free[^1^]. You can do this by following the steps in this article: Update from Windows 8.1 Preview to Windows 8.1. However, if you have upgraded from Windows 7 or earlier, you will need to buy a license for Windows 8.1.
Use a generic product key. Microsoft has provided some generic product keys for testing purposes that can be used to activate Windows 8.1 Pro Preview Build 9431 temporarily[^2^]. These keys are not meant for permanent activation and may stop working after a while. You can find these keys in this article: Crack Para Windows 8.1 Pro Build 9431. Note that these keys may not work for all versions of Windows 8.1 Pro Preview and may cause some errors or limitations.
Use a third-party activator. There are some tools or programs that claim to be able to activate Windows 8.1 Pro Preview Build 9431 permanently or indefinitely[^3^]. These tools or programs are usually illegal, unsafe, and unreliable. They may contain viruses, malware, or spyware that can harm your computer or compromise your privacy. They may also damage your system files or registry and cause your Windows to malfunction or crash. Therefore, we do not recommend using any third-party activators for Windows 8.1 Pro Preview Build 9431.

In conclusion, the best way to activate Windows 8.1 Pro Preview Build 9431 is to upgrade to the final version of Windows 8.1 if you are eligible for it. Otherwise, you may use a generic product key temporarily or wait until the official release of Windows 8.1 Pro.
How to use Windows 8.1 Pro Preview Build 9431
Windows 8.1 Pro Preview Build 9431 is a preview version of Windows 8.1 that has some new features and improvements over Windows 8. Some of these features are:

Start button. Windows 8.1 Pro Preview brings back the Start button on the desktop taskbar. You can use it to access the Start screen or the power options.
Boot to desktop. Windows 8.1 Pro Preview allows you to boot directly to the desktop instead of the Start screen. You can enable this option in the Taskbar and Navigation properties.
More customization options. Windows 8.1 Pro Preview lets you customize the Start screen more easily. You can change the background color, the tile size, and the tile layout. You can also create groups of tiles and name them.
Improved search. Windows 8.1 Pro Preview has a unified search feature that can search across your apps, files, settings, and the web. You can access it by swiping from the right edge of the screen or pressing the Windows key + S.
More apps and settings. Windows 8.1 Pro Preview has more built-in apps and settings than Windows 8. For example, you can find a calculator, a sound recorder, a reading list, and a help and tips app. You can also access more PC settings without going to the Control Panel.

To use Windows 8.1 Pro Preview Build 9431, you need to have a compatible device that meets the minimum system requirements. You also need to have a Microsoft account and an internet connection. You can download Windows 8.1 Pro Preview from this website: Download Windows 8.1 Disc Image (ISO File). You can choose to install it as an upgrade or as a clean installation.

However, you should be aware that Windows 8.1 Pro Preview is not a final product and may have some bugs or issues that can affect your experience or performance. You should also back up your data before installing it and be prepared to restore your previous version of Windows if needed.
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