UniDataRecovery can recover data from Windows OS, as well as from Other Operating Systems.

Windows data recovery is targeted mainly for FAT & NTFS and is meant to restore files from Windows OS based Fat & NTFS file system.
The recovery can include as well files damaged by virus attacks, power failures and software fault or files lost from deleted or formatted partitions.
The recovery can as well restore those files deleted using Shift+del or emptied from the recycle bin.
regarding wither the drive's partition table, the boot record, the master file table(MFT) or even the root directory are lost or corrupted, yet the data can be retrieved easily.
The Recovery process includes the previous and the new operating systems, and...

here is a list of the most known Microsoft OS's:

• MSX-DOS (developed by MS Japan for the MSX 8-bit computer)
• MS-DOS (developed jointly with IBM, versions 1.0–6.22)
• Windows 1.0 (Windows 1 - Based on Visi-On) April 30, 1985
• Windows 2.0 (Windows 2) December 9, 1987
• Windows 3.0 (Windows 3 - Is the first version of Windows to make substantial commercial impact) May 22, 1990
• Windows 3.1x (Windows 3.1) March 18, 1992
• Windows 3.2 (Chinese-only release) November 19, 1992
• Windows for Workgroups 3.11 January 21, 1993
• Windows 95 (Windows 4) August 24, 1995
• Windows 98 (Windows 4.1) June 25, 1998
• Windows Millennium Edition (Windows Me - Windows 4.9) September 14, 2000
• Windows NT (Full 32-bit kernel, not dependent on MS-DOS)
• Windows NT 3.1 March 31, 1994
• Windows NT 3.5 September 21, 1994
• Windows NT 3.51 May 30, 1995
• Windows NT 4.0 July 31, 1996
• Windows 2000 (Windows NT 5.0), February 17, 2000
• Windows XP October 25, 2001
• Windows Server 2003 April 24, 2003
• Windows Fundamentals for Legacy PCs July 8, 2006
• Windows Vista January 31, 2007
• Windows Home Server February 28, 2008
• Windows Server 2008 February 28, 2008
• Windows 7 October 22, 2009
• Windows CE (OS for handhelds, embedded devices, and real-time applications that is similar to other versions of Windows) May 30, 2002
• Windows CE 3.0 December 25, 2002
• Windows CE 5.0 February 27, 2003
• Windows CE 6.0 May 5, 2004
• Windows Mobile (based on Windows CE, but for a smaller form factor) April 14, 2005
• Windows Phone 7 October 21, 2010
• Singularity - A research operating system written mostly in managed code (C#) November 30, 2009
• Midori - A managed code operating system July 21, 2010
• Xbox and Xbox 360 OS custom operating systems May 12, 2005 and August 10, 2006