Windows 8.1 is a release of the Windows NT operating system developed by Microsoft. It was released to manufacturing on August 27, 2013, and broadly released for retail sale on October 17, 2013, about a year after the retail release of its predecessor. It was Microsoft's operating system for use on personal computers, including home and business desktops, laptops, tablet PCs and media center PCs until it was succeeded by Windows 10 on July 29, 2015. Windows 8.1 was made available for download via MSDN and Technet and available as a free upgrade for retail copies of Windows 8 and Windows RT users via the Windows Store. A server counterpart was released on October 18, 2013, entitled Windows Server 2012 R2. Microsoft ended mainstream support for Windows 8.1 on January 9, 2018, and extended support will end on January 10, 2023.


[ RELEASE INFO ]

* File: W81X64.PROVL.ENU.JAN2022.iso
* Size: 3,78GB
* Format: Bootable ISO

* CRC32: 48b58ab4
* MD5 : c51120ee7eb8602663c033452a7613bb
* SHA-1: 9bc0b601ea133fab1f4aeae5056aacab9bc30a83

[ EDITIONS INCLUDED ]

* Windows 8.1 Pro - STD
* Windows 8.1 Pro - KMS
* Windows 8.1 Pro - OEM

* STD = Standard installation - For those with own License Key
* KMS = Activated by KMS_VL_ALL
* OEM (Original Equipment Manufacturer) will automatically
* activate original version installed by Manufacturer.


[ FEATURES ]

* UEFI-ready
* (Use attached Rufus USB-tool to make UEFI-bootable)
* Diagnostics and Recovery Toolset 10.0 (boot.wim only)
* install.wim compressed to recovery format (install.esd)

[ INSTALLATION & INFORMATION ]

* Create bootable USB (highly recommended) with Rufus
* (attached) or burn to DVD-R at slow speed.

* Hope you will enjoy this release!


Integrated / Pre-installed:

* NET Framework 3.5
* NET Framework 4.8
* Important & Security Only Updates - 2022-01-11

https://www.microsoft.com