Here is my problem: whenever I turn on my computer, vista goes into a reboot loop. The computer restarts a few seconds after I get to the login screen (letting me enter in at least part of my password). The problem is not solved when I press the power button, which makes it impossible to turn the computer on. I tried booting into safe mode. The same thing happened. To clarify: this did not happen after an update and I have had this setup for years. Before this problem occurred, my computer was very slow and something seemed to be taking up all of the CPU resources. A scan with Trend Micro, Malwarebytes, and Spybot S&D turned up nothing, although I was not able to update any of them. (speedtest.com confirmed that my network connection was good.) Decided to reboot and hope for the best. One more thing: when the computer was shutting down, I got numerous errors that said something along the lines of "STOP 0x00000007b". Am currently running Ubuntu on partition. Anyone have a diagnosis?