How To: Fix Windows Stop Error Code 0xC0000221 or STATUS_IMAGE_CHECKSUM_MISMATCH
You may receive any one of the following Stop error messages with a Blue Screen of Death during Windows Xp or Vista startup:
STOP: C0000221 unknown hard error Path\File_name
STOP: 0xC0000221 unknown hard error C:\Winnt\System32\Ntdll.dll (or another specific file or driver)
STOP: 0xC0000221 STATUS_IMAGE_CHECKSUM_MISMATCH Path\File_name
This stop error may occur in Windows Vista or in XP, if the system file that is described in the error message is corrupted.This Stop message indicates driver, system file, or disk corruption problems (such as a damaged paging file). Faulty memory hardware can also cause this Stop message to appear in Windows Vista or in XP. This Windows stop error message can also occur if the driver has corrupted the registry data while loading into memory, or the memory where the registry is loading has a parity error. In the latter case, turn off the external cache and check the memory chips.A common cause is that the battery on the motherboard that powers the CMOS needs to be replaced. The message may contain the name of the damaged file.
- You can use Driver Rollback or System Restore from safe mode, to restore a previous driver. You can also use Windows Vista or Windows XP Professional recovery features such as the Last Known Good Configuration startup option, Backup, or Automated System Recovery to restore a previous working configuration. After restoring from backup media, you might need to reapply service packs or hotfixes, depending on when the backups were made.
- If the Stop message names the specific file, try replacing it manually with a fresh copy from the Windows XP Professional operating system CD using safe mode or Recovery Console. For systems using the FAT16 or FAT32 file system, you have the option of using a Windows 98 or Windows Millennium Edition Emergency Boot Disk to access the hard disk.
Note:To resolve this problem easily, obtain a new copy of the corrupted file or reinstall Windows Vista or XP operating system. If you continue to receive the stop error messages after you reinstall Windows Vista or XP, a hardware problem or a network problem may exist.