
Fix 'Access Denied' Errors After Windows Update
After a Windows update, you might see "Access Denied" errors when trying to open Windows Security...
Software troubleshooting desk

After a Windows update, you might see "Access Denied" errors when trying to open Windows Security...

If Windows Defender (Microsoft Defender Antivirus) is missing, disabled, or not working correctly...

You’ve updated a .NET assembly in the Global Assembly Cache (GAC) or copied a new DLL into a modu...

If Remote Desktop keeps crashing on Windows 10—closing unexpectedly, freezing, or failing to conn...

You try to access a network share, remote desktop, or a secured website, and Windows Security thr...

You're stuck at the BitLocker recovery screen after a system hang or forced shutdown. You enter t...