If you want to check when you last booted your computer, you can find this information using the Command Prompt. To do this, press Windows+R, type cmd and press Enter .Once you have your Command prompt ready type in:
C:\systeminfo | find /i "Boot Time"
The Command Prompt will display the exact time and date that the PC was last booted. It can take the console up to a minute to find this information, so be patient if it seems like it’s taking a while.