>Can someone remind me what the options are for free antivirus programs, for home use - and perhaps a suggestion, which is best?
>
>I have been using AVG for some years now, but the version I am currently using makes my computer very slow, and I can't even update to the latest version, recently announced - I get an error message every time I try.
>
>Using Windows XP.

Try..

http://www.microsoft.com/Security_Essentials/

Free for home use