I have met this problem about reinstallation of XP, the story:
Some days ago, i was using one online TV S/W, when it cause my old PC no response,after waiting more moments, i decided to reboot manually.Then unpleasant result..
It failed to reboot and BSOD happened, it said stop:c000021a unknow hard error, then i had to reboot by force.
Then i formated the whole disk and decide to reinstall my OS, after the process finished, I can enter the OS, but after installing the drivers, such as sound card,graphics card etc.
After i reboot, i can't enter the OS any more. Then the thing waiting for me is force me to reinstall OS AGAIN.
Well, just continue to reinstall. I thought the process will be ok ,installed drives and during the reboot, BSOD, It said physical memory dump complete.
Jesus Christ!Make me CRAZY!
Appreciate any help for this case!
PS:The reinstallation of XP and the relevant drivers was normal before and i can reinstall the OS successfully with the same method above.
I checked the HDD, it is working.