Is your current anti virus compatible with to Windows 2000?
If not, you need to get a compatible version.
If so, uninstall/reinstall.
Also since this is a Windows Update newsgroup, you should ask further
questions in a Windows 2000 newsgroup:
http://aumha.org/nntp.htm
--
Jupiter Jones [MVP]
http://www3.telus.net/dandemar
http://www.dts-l.org
"flip" <> wrote in message
news:5535A948-DFF4-49BC-9EB7-...
>I just upgraded from Windows ME to Windows 2000 but now can't get my
> antivirus software to work on it. Any ideas?