My parents did something and now my pc boots up really slowly

[riccardomedici122]

Hello
I have a one year old gaming pc that my family has used as the main computer while I was away.
Now that i'm back I finded out that often the pc doesn't boot up, leds and fans are working and there are not any weird noises but the mouse and the monitor don't have any signal,... usually after one minute they turn on, the bios runs and in 10 second the pc is perfectly working as new.
I sincerly have no ideas because my parents have no "pc culture" and they said this happened after they unplugged the keyboard... But I don't think this caused the problem.
Any suggestions?

 

[marksavio]

you can try the following :
* shutdown. turn off the PSU. remove the power cable. open your PC and see if you see any food\drink stains on the hardware.
* clear the CMOS. if you OC your PC. you may need to back up your OC profile before doing this.
https://www.lifewire.com/how-to-clear-cmos-2624545
* remove your RAM and GPU
* press power button for 1min.
* put them all back in
* unplug all your USB devices except for your keyboard and mouse
* boot