Here’s a trick you can use to find out when Windows was installed on the computer you are working at. Open a command prompt and type the following:
systeminfo | find /i “install date”
This command pipes the output of the systeminfo.exe command into the find.exe command to locate the line of text that contains the string “install date” and displays the result.
Cheers,
Mitch Tulloch
MVP Windows Server
http://www.mtit.com