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Fix 'Windows Defender File Locked by Another Program' Error - Reduce Antivirus CPU Impact on PowerShell-Task Scheduler Broken After Offline Setup? Here's the Fix

Updated 2026-06-13 21:28:34developer-tools

Fix 'Windows Defender File Locked by Another Program' Error - Reduce Antivirus CPU Impact on PowerShell-Task Scheduler Broken After Offline Setup? Here's the 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.