Windows 10: Major Computer issues please help ASAP

So recently i have been having a lot of computer issues, a list of them goes as follows, programs don’t stay after restart or shutdown, settings don’t stay the same after restart or shutdown, freezing, high disc usage or high CPU usage never both at the same time, blue screening with errors such as Critical Process Died, System Service Exception, and Registry Error, I can’t reset my computer and very time I restart it gets stuck on getting windows ready. Also i can’t update my computer, going into system recovery sometimes doesn’t work and when it does nothing really works cause it just free

:)

 

Need major help

So I am in the process of throwing my A64 rig back together but I am having major CPU cooling issues. The first time I thought I broke the seal between the CPU and HSF and reapplied AS5. The temps were fine sitting idle at 39-40C. However when I was on Windows Update (of all places) the temp would quickly shoot up to 75C! Then my computer would sound off an alarm. I have reapplied AS5 three times already and I still overheat.

Need this resolved ASAP and I need your suggestions to help me out.

Thanks in advance.

Crash

 

Help ASAP

Run through these POST codes and troubleshooting steps:

What is POST?
Computer POST and beep codes
POST troubleshooting steps

 

Need major help

Was there a thermal PAD in there to begin with?
Sometimes paste will not compensate if there is a small gap where an actual thermal pad was.