Cannot "re-install" W2k-Pro

I had a trojan hit my system, thought I stopped it but
some "things" are funny. So, I tried re-insalling W2k-Pro.
It won't install and I get the message, "existing software
was not fully installed. To fix this problem, click
details". I re-start but nothing attempts to install.

What's the solution???? Thanks!

Roy

Try rebooting from a win98 boot disk then type fdisk and
delete all partitions and non dos partitions (this will
delete all your data but it will do a full clean up of
your drive). Then reboot using the w2k cd and try to
install again.

>-----Original Message-----
> I had a trojan hit my system, thought I stopped it
but
>some "things" are funny. So, I tried re-insalling W2k-
Pro.
>It won't install and I get the message, "existing
software
>was not fully installed. To fix this problem, click
>details". I re-start but nothing attempts to install.
>
> What's the solution???? Thanks!
>
>Roy
>.
>