Medium Operating Systems ✓ Solution Verified by Community (1+ upvotes)

How to fix error unknown-crash in Windows 10/11

Error code UNKNOWN_CRASH — community-reported fix.

✅ 85% success rate
👥 1+ users verified
📅 Updated: 2026-08-12
⏱️ 10 min read
Fix based on community reports and expert analysis. Last verified: 2026-08-12 · How we verify fixes
Error Codeunknown-crash
Affected SystemWindows 10/11 (—)
DifficultyMedium
Estimated Time10 min
Requires Admin Rights⚠️ Yes

Solution Steps

  1. 1 Open Settings > Update & Security > Activation > Troubleshoot.
  2. 2 Click 'I changed hardware on this device recently'.
  3. 3 Run Command Prompt as Administrator.
  4. 4 Run slmgr /ipk XXXXX-XXXXX-XXXXX-XXXXX-XXXXX (replace with your product key).
  5. 5 Run slmgr /ato.

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