How can I check the last time my computer was used and shut down?

There's a simple command you can use: type 'systeminfo' in the command prompt and it will show you system uptime, which includes last startup.

Absolutely, Event Viewer is what you need! It can give you all the details about when the system was started and shut down.

If you're into scripting, PowerShell can also provide you this info. You can run specific commands to extract the startup and shutdown logs.

You can use the Event Viewer for this! Just filter the logs for startup and shutdown events and you'll be able to see when the computer was last used.