What am I doing wrong?

Hi,
I wonder if anybody can help me please?
I've recently been given a PC to clean. It's very slow with the CPU maxed out.
I've taken a lot of advice and managed to clean a lot of traces out but the CPU is still bouncing around and it's still not happy.
To remove malware I've used:
Avira antirootkit
McAfee antirootkit
Sophos Anti root kit.
Then in safe mode:
Hijack this (using www.hijackthis.de to decipher)
Malwarebytes anti-malware.
Removeit pro 4
A squared free
avira antivirus
CWshredder
ad-awareAE
Smitfraud
combofix
The only program theat didn't find anything it AVG free
So what have I missed out?

Thanks in advance

I MM

 

Hello

It's hard to tell, with the information you have provided.
But unless you want to spent some time with process monitor and a network monitor I would go for the rebuild solution.

Before that, you could save importent data with a recovery cd like ubcd4win

Setup guide.
http://www.ubcd4win.com/howto.htm

HTH

/Jesper

 

Perhaps the system has become corrupted.

A good but long read: https://www.wilderssecurity.com/showthread.php?t=252253

 

Agree with ravnen, backup - format and start off fresh.

Or... Disable/uninstall each running application on your computer one-by-one to see which is causing the issue. Work from there after you have identified the problematic program. If that does not work, I agree with ravnen, backup - format and start off fresh... always works... unless its hardware issues.