I don't know that you can figure out who physically touched your PC.
Like Bunz said, Scan it.
If it's a concern, Set a password for when your OS starts up. Also require it after waking your computer up and exiting your screen saver.
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I don't know that you can figure out who physically touched your PC.
Like Bunz said, Scan it.
If it's a concern, Set a password for when your OS starts up. Also require it after waking your computer up and exiting your screen saver.