Knowledge base for software setup, errors, and daily tool work.

Fix Windows Defender Not Starting Due to Antivirus Conflict

You open Windows Security and see a message that Defender is turned off or not starting. The most...

Fix Windows Update Token Expired by Resetting SoftwareDistribution Folder

If you see a Windows Update error mentioning an expired token, the update components may have sta...

Fix Windows Security High CPU Usage: Practical Steps

If your computer feels sluggish and Task Manager shows that Windows Security (or Antimalware Serv...

Enable Windows Defender After Disabling Third-Party Antivirus

If you've disabled or uninstalled a third-party antivirus and now find Windows Defender is not au...

How to Fix Remote Desktop 'Connection Refused' or 'Permission Denied'