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Because of the viral infection, if the PC gets crashed,
On start-up, it shows the msg on Console screen on start-up, saying, "hal.dll file is missing/deleted, press alt+ctrl+delete to restart the system", (XP OS)

In such a case, how to recover the PC other than installing fresh copy of OS (completely formatting the local disk-drive) ?

The "repair" option with XP installation CD can't fix it.

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Is it the only solution, to format the OS? – InfantPro'Aravind' Feb 19 '10 at 11:38
up vote 4 down vote accepted

I would try to manually replace the hal.dll by using the recovery console.

once you get a prompt, try

expand d:\i386\hal.dl_ c:\windows\system32

where d: is your optical disc. Restart, and it should (hopefully) be ok.

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