Medium Game Launchers ✓ Solution Verified by Community (1+ upvotes)

How to fix error unknown-crash in Xbox App

Error code UNKNOWN_CRASH — community-reported fix.

✅ 85% success rate
👥 1+ users verified
📅 Updated: 2026-08-12
⏱️ 15 min read
Fix based on community reports and expert analysis. Last verified: 2026-08-12 · How we verify fixes
Error Codeunknown-crash
Affected SystemXbox App (Microsoft)
DifficultyMedium
Estimated Time15 min
Requires Reboot🔄 Yes

Solution Steps

  1. 1 Run Microsoft's Gaming Services Repair Tool for PC
  2. 2 Restart the computer
  3. 3 Test the Xbox app again

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