Windows error codes span multiple subsystems — from blue-screen stop codes to Win32 API return values and COM HRESULT codes. This section catalogs every major Windows error with a clear explanation and a fix you can copy and paste.
All Windows Error Codes
| Code | Type | Description | Fix |
|---|---|---|---|
| 0x80004005 | HRESULT | Unspecified Error | Windows Update troubleshooter, SFC/DISM |
| 0x80070005 | HRESULT | Access Denied | Take ownership, permissions fix |
| 0x80070002 | HRESULT | File Not Found | Clear SoftwareDistribution cache |
| 0x8000FFFF | HRESULT | Catastrophic Failure | wsreset.exe, re-register Store |
| DPC Watchdog Violation | BSOD | Blue Screen | Update storage drivers, SSD firmware |
| IRQL_NOT_LESS_OR_EQUAL | BSOD | Blue Screen | Update drivers, memory diagnostics |
Quick Fix Commands
Most Windows errors can be narrowed down with a few diagnostic commands:
# Check system file integrity
sfc /scannow
# Repair the component store
DISM /Online /Cleanup-Image /RestoreHealth
# View recent blue-screen minidumps
Get-ChildItem C:\Windows\Minidump\*.dmp