Friend of mine does not know how to clear this virus using nod32

my friend is a new user of nod32 and hes quite impressed with the amount of virus found and cleared,but the problem is everytime he scans his com using NOD32,he gets this: the following possible virus is found but cannot be cleared
"MBR sector of the 1. physical disk contains probably unknown TSR.BOOT virus [7]."

[ronjor]

Please see this thread. http://www.wilderssecurity.com/showthread.php?t=63269

he doesnt run the software and he has the latest updates
so most likely it could be a real virus?

[Stephanos G.]

Please look here

[Blackspear]

Originally Posted by Marcos

If NOD32 reports a probable unknown TSR boot virus, always contact Eset's support at support@eset.com for further instructions.

From post No 15 in the above link.

Let us know how you go...

Cheers