Trojan Flush.M

HI there,

I am running Norton Anti - Virus and it has reported that i have a virus
called Trojan Flush M and no matter what I try I can not remove this virus. I
tried to follow the instructions for manual removal of this virus, however it
instructed me to restart windows in safe mode and then a full scan. When I
tried to do this I was asked for a administration password , but I bought
this computer second hand and have no idea what this pasword is!


Also my computer is now acting very strange , programs are disappearing when
I re start the computer and when I try to view the c drive I get an error
message which states " WINDOWS CANNOT FIND RESYDED /BOOT.COM OR
RESYCLED/BOOT.COM

I am desperate not to lose the many important family files on this computer,
such as photos and videos, can someone please help me with this very annoying
problem.

Thanks in advance.
Ta