
Checklist to Enable Windows Security Auto Start
If Windows Security (formerly Windows Defender) doesn't start automatically after you log in, you...

If Windows Security (formerly Windows Defender) doesn't start automatically after you log in, you...

You see an error like "Some update files are missing or have problems" or a specific error code s...

If you see DNS resolution failed when running a PowerShell command that tries to con...

If Windows Defender (Microsoft Defender Antivirus) is acting up—won't open, shows error messages,...

You backed up your apps via Microsoft Store settings, but after a reset or new PC, only some rest...

You run Disk Cleanup to remove Windows Update temporary files, but the progress bar sits at 0% or...