Question My PC is not starting up

[XHunterYT]

CPU: Intel Pentium G3258 3.2 Ghz
GPU: Gigabyte 1050
PSU" Evga 500w
So my PC does start up and it shows the Windows 8 logo loading and then after that it just shows a gray screen. I opened up the PC and replugged everything in and it is still the same. The only thing is that the fans of the GPU stop spinning. Anyone know what's happening?

 

[Barty1884]

While the 500W EVGA units aren't great, they should be plenty capable for that system.

Sounds like the problem is after you boot into Windows - indicating a software problem.
Trying forcing reboots, interrupting the boot process (as soon as you see the W8 logo, force a reboot/shutdown). Interrupt 3 times and you should enter the recovery environment allowing your to enter safe mode (Automatic Repair > Advanced > Troubleshoot > Safe Mode).

Do you reach the desktop under these circumstances?