Alot of BSOD's

Ive got a custom made pc :
specs: amd phenom II x6 1055T
Asus M4A88T-M/USB3
Ati radeon hd 5770
4GB Ram (hyper x)
Win 7 home premium 32bit

When I first got my pc it worked great and I had no problems at all but after 2
months or so suddenly I began to get BSOD's and ever since then i had alot of BSOD's.. (i have had no hardware changes, only new drivers)
I had all sorts of bsods: MEMORY_MANAGEMENT, DRIVER_IRQL_NOT_LESS_OR_EQUAL, PFN_LIST_CORRUPT, KERNEL_MODE_EXCEPTION_NOT_HANDLED, BAD_POOL_HEADER/CALLER, IRQL_NOT_LESS_OR_EQUAL...
Using the Bluescreenviewer I found out alot of them were caused by ntkrnlpa.exe. I've been searching over the webs in search for a way to fix my issues and alot of forums said that a faulty memory was the cause of the errors, so i ran
Memtest; but no errors were found.. I used tuneup uttilitys to clean up my registry and all and it also showed that my USB 3.0 hub wasnt working, so I searched for a new driver but mine was up to date, so since then i just disable that driver, but that also didnt help..
I also used WiseFixer to scan my PC and it showed almost 8000 "evidence" errors (i dont know what that means), but in order to fix them i had to buy the program.. (btw wisefixer gave me a score of 36/100 for pc health).

So now I dont know what to do anymore.. (I don't want to buy new RAM and then find out that it didnt solve the issue..)

Run SFC
SFC /SCANNOW Command - System File Checker
If errors are found but not fixable do a Repair Install

Remove PowerISO and Asus Update/PC Probe. Uninstall any AVG software and use MSE

Run a scan of Malwarebytes

Code:

SCDEmu.SYS        0x91350000    0x91357760    0x00007760    0x46b7b98a    07/08/2007 04:15:06

Code:

AsIO.sys        0x91679000    0x91679fa0    0x00000fa0    0x4a768b88    03/08/2009 11:02:32

I used tuneup uttilitys to clean up my registry and all and it also showed that my USB 3.0 hub wasnt working, so I searched for a new driver but mine was up to date, so since then i just disable that driver, but that also didnt help..
I also used WiseFixer to scan my PC and it showed almost 8000 "evidence" errors (i dont know what that means), but in order to fix them i had to buy the program.. (btw wisefixer gave me a score of 36/100 for pc health).

These programs won't in any case 'repair' your system, get a refund if possible. Never use these
The registry doesn't need to be cleaned

Thanks for the quick reply!

I did as you said, the SFC scan fixed some issues.
Also, malawarebyte found an infection (had to do something with poweriso) and that has been removed.
I couldn't find anything called Asus update/ Pc probe.. what do you mean with that?

Another BSOD... memory_management
Occured when starting up a game.

vandenBerg said:

Another BSOD... memory_management
Occured when starting up a game.

Your system appears to be corrupt, do a Repair Install