antivirus program?

Avast! is another free anti-virus program, but this is one piece of software that should be purchased instead of using a free version. I'm using NOD32 and haven't had any problems.

Also I'm copying this part from my other answer

-- Too remove winlogon.exe from the Vault got to the AVG Control Center, scroll down to the Vault at the bottom of the panel. I'm not sure how you would do it, I've never restored a file and there are no instructions that I could find, but click(or right click) on the file and choose restore( I think that there is also a "restore as", but don't use that).

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McAfee is free for persons that have comcast Internet access. If you don't have comcast you will need to buy an anti-virus program called McAfee they sell them on almost every were that sells computers.McAfee is the ~BEST~

don't even think of downloading northanivirus is ant good at all.

Try removing winlogon.exe from your program list. Then try to reinstall AVG.

Well, yes there is. Although this program is normally avaible for purchase for around $29.99-$39.99, it is free on Microsoft's website. This program is called Microsoft Live onecare and it is a recent product to the market (it was released in mid September-October) and when you go to Mocrosoft's website, it scans your computer for free, and it is avaible for free download for 90 days. Here is the link, Enjoy!! : ): http://www.windowsonecare.com/purchase/trial.aspx?...

Avast Home Edition is free and works well.

I have used trendmicro pc-cillin for years and I have had very good success with it, it isn't free but it isn't expensive either.