Windows 8.1 has been released and is available for download publicly. Windows 8 users will be able to upgrade to Windows 8.1 free of cost. This offer is not for users who are using Windows 8 downloaded from MSDN/TechNet subscriptions. They will need to clean install Windows 8.1.
Windows 8.1 System Requirements
Windows 8.1 system requirements are virtually the same as Windows 8. Here are the major requirements:
Processor: 1 gigahertz (GHz) or faster with support for PAE, NX, and SSE2
RAM: 1 gigabyte (GB) (32-bit) or 2 GB (64-bit)
Hard disk space: 16 GB (32-bit) or 20 GB (64-bit)
Graphics card: Microsoft DirectX 9 graphics device with WDDM driver
Downloading Windows 8.1 setup files
If you have already purchased Windows 8.1, you can download Windows 8.1 ISO image from Windows 8/8.1 upgrade page. This method requires you to have a product key prior to downloading the ISO image.
If you have upgraded from Windows 8 to Windows 8.1 through Windows Update, you will be able to save the Windows 8.1 setup using the following method:
Go to Windows Update and install the Windows 8.1 update.
All the Windows Update files will be downloaded in the following folder: UserFolderAppDataLocalMicrosoftWebSetup
These files will be encrypted but once the download completes, they will be decrypted in one of the following folders: C:ESDWindows C:Windows:SoftwareDistributionDownload
Just copy all the files in the above folders in a safe location. This folder contains all the Windows 8.1 setup files. You can also create an ISO image of this folder.
Downloading Windows 8.1 ISO images
At the moment, Windows 8.1 Enterprise ISO images are available for download publicly. Here are the download links for all languages: