no administrator or task manager

[tomc102968]

hi all first off thank you im at a friends comp and he has no task manager or start key functions except to shut down. there is no my computer anywhere . my ? is where do i start. the computer runs ok its an old dell 512 mb ram

 

[Hefemeister]

I would start here.
http://www.techist.com/forums/f51/spyware-removal-guide-osiris-updated-6-2-2009-a-165828/

also perhaps it is time for a repair install as well.
How to Perform a Windows XP Repair Install