If you ever need to find when was Windows installed on your computer or laptop, then here is a Windows command
Systeminfo that can help you with that.
Run the below
- Open command prompt
- Run the command
systeminfo | findstr /C:"Install Date"
The below example shows install date on my computer
C:\>systeminfo | findstr /C:"Install Date" Original Install Date: 9/27/2017, 11:53:03 AM