Fix Windows Security Login Loop and Sync Issues - Fix Task Scheduler Access Denied Error-Fix Windows Security Not Opening2026-06-14 07:41:54Result checkKeep one change per test run so you know which step helped.Undo temporary changes after the issue is confirmed.Next referencesFix Windows Defender Port Already Allocated Registry ErrorFix Remote Desktop Permission Denied After UpdateBitLocker Best Settings Checklist for SecurityFix BitLocker Service Unavailable Permission Denied ErrorHow to Fix Microsoft Store Error 0x80073cf0Fix Windows Update 502 Bad Gateway Connection Issue