Here's an interesting Knoppix topic for you all:

I had my PC into a repair shop a while back in order to replace a power supply that had been fried by installing graphics cards that needed too much power. They put in a stronger power supply and I was back in business. I did not give them the login for my system since this was a basic hardware issue.

My system has an internal DVD drive that used to work fine when I ran XP, but now that I run Vista, I use an external drive, since the old internal one is incompatible. As a result I haven't looked into my old internal DVD drive in some time.

Today however, I opened it up and discovered a Knoppix 5.3 CD in there (certainly not mine, and nobody else has had access to my system). I'm guessing it would run fine on the old DVD drive if this was used to boot the system. I did a little research and understand that Knoppix is frequently used for data recovery, and is able to access and copy data from the file system.

Fortunately I keep most sensitive data in an encrypted folder, but this makes me think these guys tried to access my data without permission...?!?

Is there any way to find a log or anything that would show when the system was booted using Knoppix? Any way to prove these guys tried to access my PC?

Thanks for your feedback-