BSOD "STOP: c000021a {Fatal System Error}"

By MWunsch995 ยท 10 replies
Jun 26, 2009
  1. Ok, so I was downloading an updated driver for my printer when my wonderful daughter reset the computer. Now my windows is corrupt. I tried repairing windows with the cd and its not finding a previous version of windows installed. So I went ahead and installed a 2nd windows os on the computer so now at least I have the "My Documents" folder copied. The newer Windows works fine, but the original one is corrupt. I want to be able to save my emails and address book. Does anyone know of a way that I can do this from Windows Explorer.

    Or I'd like to try just fixing the original OS system enough that I can log on and get my info then wipe the hard drive clean and start over. The message I get when starting the original Windows is:

    STOP: c000021a {Fatal System Error}
    The Windows Logon Process system process terminated unexpectedly with a status of 0xc0000135 (0x00000000 0x00000000).
    The system has been shut down

    PLEASE help me...I don't want to lose all my emails!
  2. fastvince

    fastvince TS Enthusiast Posts: 70   +19

    You might be able to use the last known good configuration
    from the startup and recovery menu, this saved me a couple of times.

    You can get it to come up by pressing F8 during system startup of the corrupt version of windows. Select last known good configuration.

    I don't know if this will work, but its worth a try.
  3. MWunsch995

    MWunsch995 TS Rookie Topic Starter

    I tried the safe mode and last known good configuration...and neither of those worked.
  4. snowchick7669

    snowchick7669 TS Maniac Posts: 660

    You may have to try a repair of the operating system

    Here is a guide, you will need your XP/vista disks for this
  5. MWunsch995

    MWunsch995 TS Rookie Topic Starter

    I tried that repair already. It doesn't find any previous versions of Windows installed. It just gives me the option to install another Windows on the computer.
  6. snowchick7669

    snowchick7669 TS Maniac Posts: 660

    Can you run chkdsk on the drive itself?
  7. MWunsch995

    MWunsch995 TS Rookie Topic Starter

    Yeah, I did the chkdsk, and chkdsk /p and chkdsk /f and they all "cleaned it" but I still get the error.

    It was a HP Printer driver that I was trying to download when it got interrupted.
  8. snowchick7669

    snowchick7669 TS Maniac Posts: 660

    You cannot get into safemode at all is that correct? If not, does it freeze while loading any driver?
  9. filimarcus

    filimarcus TS Rookie Posts: 29

    try boot into safemode, and do a system restore. Once you entered inside, you can click restore at earlier time. I've tried this and it is worked wor me(sorry for my bad english)
  10. MWunsch995

    MWunsch995 TS Rookie Topic Starter

    No, I cannot boot into safe mode. I tried every boot option on that menu...and nothing.
  11. snowchick7669

    snowchick7669 TS Maniac Posts: 660

    What happens when you try go into safemode?
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