do u have any install or setup disks? u need to install the file again and therefore install windows

I have used the setup disks to reinstall windows, however as setup runs the computer shuts down. I therefore think it must be a hardware problem as the computer continues to shut down without warning, what do you think

ok. does the pc shut down and then restart itself? if yes this should be perfectly normal as with a lot of things if windows or another program needs to install fully sometimes it will shut down. let it go thru its proper install process from start to finish and then try again to see if the file will initialize.

good luck

http://securityresponse.symantec.com...alinstructions

Sounds very much like you may have the 'Sasser worm'. Those instructions should help you remove it if that's the case.

i was trying to say that if it wasnt a worm, the shutting down and restarting of windows during install would be normal in some instances.

however this time i was wrong. it is sasser and you need to get rid of her. follow cat's advice and please accept my apologies here.:o

sorry about the inconvenience caused.

lsass.exe is the file name for sasser.

forget about my last post... I come back to this forum completely refreshed and with a revised mind.

I have researched lsass.exe. this is a running system process on xp systems. go into task manager/processes and it will be there somwhere. Now then worms like sasser and sobig will piggyback onto this and cause it to fail unless it has been disabled in msconfig somehow. You yourself cannot disable it because its a system process

http://www.computing.net/security/ww...rum/14693.html
http://www.google.co.uk/url?sa=U&sta...d%3D100&e=9800

LSASS.EXE: a process corresponding to local security and user authentication policies. If this process is closed, a countdown message is displayed and then the computer will be restarted.

- SVCHOST.EXE: a process that handles services run from DLLs (Dynamic Link Libraries).
http://www.cambridgenetwork.co.uk/po...NEWSART_132383

isass.exe is a viral program. delete it. Lsass.exe is not. this IS A VITAL SYSTEM PROCESS AS EXPLAINED ABOVE.
IT WILL BE FOUND ON ALL WINDOWS XP MACHINES.

i rest my case.

eerrrmmmm............

The 'Sasser worm' (the one which infects a lot of systems even immediately they are freshly installed and connected to the internet) does a whole heap of things on the system, none of which involve isass.exe.

isass.exe is a different beastie, known as the 'OpticPro virus'.

The instructions given in the Symantec bulletin indicate how to get past the Sasser worm and get a system operable. right now, the important thing here is for Dantheman to make use of those instructions and see if they help to get his system working, not some silly argument about which files mean what.

Despite the high probability that this is a Sasser infection, should it actually prove not to be other avenues will need to be explored.

Thank you for your replies i think the problem could well be a worm, however i cannot download a stinger program to remove it as my laptop will not stay on long enough and windows will not run. Does anyone have a solution to this problem or a way around it, any advice would be more than welcome.

If you download McAfee's 'Stinger' on a different PC and save it to CD, you should be able to boot your system into 'Safe Mode' and load/run Stinger from there. Should work.