How can I tell when I logged into Windows?

Solution 1:

You can try "net user < username >" - one of the many results will be the 'Last logon' time (note: I've only tried this on a domain workstation, not a standalone one, so your results may be slightly different).

Solution 2:

Open Command Prompt. at prompt, type 'quser' should display your logon username and time along with some other data.

Solution 3:

I see a lot of dancing around the event log answer, but not the exact answer, so I will give it.

1. Go into the Event Viewer
2. Expand Windows Logs (under Event Viewer)
3. Choose Security (under Windows Logs)
4. View the Task Category column for logons
5. Click on a logon row and view the details to see if it is the user you are expecting.