Question
How can I troubleshoot the 0xc000021a error when Windows 11 fails to boot?
Asked by: USER5917
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74 Answers
Answer (74)
You can troubleshoot by booting into Safe Mode (if accessible), using System Restore to revert to a previous working state, running Startup Repair from the recovery environment, or using the command prompt to run `sfc /scannow` to scan and repair system files. Advanced users may also try to analyze memory dumps to identify driver conflicts.