At very random times my computer will shut down unexpectedly as if someone puelled the plug, however the green light on my motherboard is fine and none of my components are damaged. When it shuts itself off I cant turn it back on again without switching the switch on the PSU off/on. Then I can press the power button on my case and she boots up with one quick BIOS beep. I hope someone can help me diagnose this problem, because its really annoying!! Btw this all started to happen AFTER I installed Windows 10.