problem with falls 'antivirus'

[igrek001]

Hello, there:

 

Couple days ago, when I start my desktop Dell Intel Pentium 4, Windows XP Pro, appeared message:

" Application Cannot be executed. The file wuacult.exe is infected. Do you want to activate your antivirus software now?"

Despite of my choice 'yes' or 'no', the message appeared again and again. Moreover, appears warning from some 'Antivirus System Pro', which indicates that my PC is infected and offer help, if I subscribe to this program for pretty expencive payment.

I'm sure that it is some maleware, but cannot remove it.

I activated my antivirus Avast and scan hard drive, but it doesn't help.

Actually, I already post this message yesterday, but to wrong section - Window XP.

I received detail insrtuction, how to install 4 malware cleaning program and scan my PC with all of them, but problem is that this "Antivirus System Pro" blocked all my browthers and I can't install the recomended programs even after bring them from my laptop.

Only one I could install - Malwarebytes' AntiMalware, but can't open, activate it for scannig.

 

Is there same another way to remove this maleware??

 

Thank you

[RandyL]

Sorry igrek. We had some forum issues last night and your original post problem with unwanted antivirus program was accidentally deleted. I've corrected that if you care to continue this in the original thread you can.