Are these errors related, and are they problems with hard or software?

I've had some problems with random BSODs on booting the last couple of days, and i desided to check the error log for problems. I am seeing a massive ammount of errors, and i'd like to know whether they are related, and whether they are hard- or software problems.

After booting windows explorer repeatedly crashes on starting, but once it actually works everything keeps running fine.

Service control manager; error code: 2140993535

This error occurs at least every minute.

PNRPSvc; error code: 0x80630801

Slightly less often then the previous one, but still very often.

Application error; Dwm.exe; error code: 0xc0000005; Faulting module path: C:\Windows\system32\atidxx64.dll

A couple of times after booting, possibly related to the windows explorer problem?

Kernel power

After i manage to succesfully boot.

I am positive there is no power failure when these errors occurs. And since the system keeps working fine once it has been booted, I wouldn't suspect the power supply to be the problem.

I was planning to reinstall Windows (7) next week anyway, but i'd like to be sure this is not a hardware related problem.

Could anyone provide some insights?

Thanks in advance!

Run chkdsk /f on the C partition, once done, run a sfc /scannow from a command prompt, see if it finds any corrupt system files and replaces them.

Once that is done scan for malware, see my post over here