halmacpi.dll problem

Hi,

This is my first post here so hopefully it is in the right place.

Ok I have had issues with my PC the last 3 days or at least I noticed it 3 days ago, it could have been like that a little longer. I ran Black Ops and noticed it was frequently pausing etc. It seemed odd as I never had such issues prior. I checked Task Manager and the CPU was spiking between 49% to 100%. Through using Process Explorer it showed System was the process that was spiking. I looked at the properties and the results showed in System 49% CPU usage by ACPI.sys.

After some searching I found ways to diagnose further and used Kernrate and KrView to find a dll called halmacpi.dll was the culprit with a very high number of hits. I have the jpg's of the checks but don't know how to post them as it requested a url address for me to do that.

I have no idea what to do and was hoping someone here can help. I have run Hijackthis, Malwarebytes, Memtest, Spybot and Avast and have come up with nothing.

As you can imagine its driving me nuts.

My system is:

Windows 7 Ultimate 32bit
Intel i5 760
Asustek P7P55D-E LX mainboard
4GB G-skill ripjaws DDR3 RAM
Geforce GTX460 graphics

Any more info required just ask.

Thanks in advance

Steve

 

Hi and welcome to MG's,
Do you own a copy of your win7 disc ?? if so or if you can get a copy then i would suggest that doing a repair install of your OS will remedy the issue!!
You say that you have ran various av scans and could not see any infection, have you followed the malware removal steps here....

http://forums.majorgeeks.com/showthread.php?t=35407

it may also be caused by a hardware failure. Hopefully the repair install should solve your issue.