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Fix 'git pull failed index.lock file exists' Error - Chrome Black Screen After Update? Hardware Acceleration Fix-Flush DNS Cache Windows 11 Internet Fix

Updated 2026-07-28 16:54:47developer-tools

Fix 'git pull failed index.lock file exists' Error - Chrome Black Screen After Update? Hardware Acceleration Fix-Flush DNS Cache Windows 11 Internet Fix

Likely symptom

Likely cause

Safe rollback

Verification route

Repeat the original action, not only a simplified test case.
Restart the app or reload the service after configuration changes.