Pop! goes the PC.

One of your end-users called with a problem; when working on their PC, they heard a small “pop” and the screen went dark and all of the lights on the front panel of the computer went dark. There was no visible smoke, but there was a subtle burning smell. What are the next steps for troubleshooting this problem?

Where is my USB memory stick?

A customer says that a USB flash memory stick works fine when he’s logged into other computers but not from his primary workstation. Where’s the best place to start troubleshooting this problem?