This topic may or may not have been discussed already, so apologies. In the last week, I've noticed my computer turn itself off automatically. It's shut down 3 4 times, three times when I've been sitting at it. Once the computer turns off, I can't turn it back on again, unless I flick the power switch off then on, on the back of the PSU. If the computer turns off & I try to turn it back on (via the front of the case), I get both the power & HDD read light steadily glow, count 2-3 secs, turns off again. Turning the power supply off then on again seems to solve the issue, but this issue is happening more frequently. It's first occurrence was during a virus scan. I'd left the room to let the scan do it business, I return to wonder why my computer is turned off. HELP! EDIT: That's 2-3 times it's now turned of while running everyone's least favourite torrent program, Azureus Vuze. EDIT: I've done a quick virus scan using malwarebytes, it found a Backdoor.Bot linked to somewhere in the registry & I've removed the virus. I've replaced Vuze with uTorrent, lol. However, it still keeps turning off. It's turned off at least 6-7 times now. It turned off a couple mins ago. Windows froze, couldn't do shit for a min or 2, then the inevitable, turn off. I left the computer off for about 15mins, turned back on, but instead of turning itself off again, it stayed on, but sat there & did jack shit. No boot up on screen, HDD light was on & steadily glowing, which isn't normal. This is starting to shit me off.