My desktop is behaving badly. Originally, it was running slow and would reboot on it's own quite often - eventually rebooting time after time in a continuous loop. It still reboots from time to time on it's own, but now it has an application that pops up as soon as it boots up. It's called Security Tool and it says there are worms that are trying to steal credit card information, but then asks to enter credit card info to buy protection. It also will not allow me to add/delete programs, and also won't allow ctrl+alt+del functionality. Here are my scans, although it would not let me run th
