How To Find Out What Date Windows 7 Was Installed Posted on by Webmaster IT Support Forum › Forums › Windows › Windows 7 › General Discussion › How To Find Out What Date Windows 7 Was Installed Tagged: Install Date This topic has 0 replies, 1 voice, and was last updated 8 years, 3 months ago by Webmaster. Viewing 0 reply threads Author Posts February 16, 2015 at 8:23 am #1062 WebmasterKeymaster Need to find out when your old Windows 7 was installed? Here’s how to find out what date Windows 7 was installed on: Type the following command in the command prompt: systeminfo | /i “install date” This will return the date and time that Windows 7 was installed. Author Posts Viewing 0 reply threads You must be logged in to reply to this topic. Log In Username: Password: Keep me signed in Log In