salmobytes typed:
If the computer runs at all, copy all your data files to a cdrom.
Then wipe the hard disk and reinstall the operating system. Then
install new anti-virus,
then and only then reload the data from CD.

I'd suggest this only as "plan B." George Adam's suggestion is worth a go as
"plan A."
--
TL,
Tim
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http://css.sbcma.com/timj