
Fix Windows Defender Access Denied Error on Startup
If you see 'Windows Defender failed to start access denied' when you open Windows Security or aft...
Software troubleshooting desk

If you see 'Windows Defender failed to start access denied' when you open Windows Security or aft...

You might see a watermark saying your Windows activation has expired, even though you never enter...

When Windows Security shows a cache error, you might see messages like "Something went wrong" or ...

You start Chrome from the command line and get an error that the port is already allocated. This ...

Outlook users sometimes encounter two related problems: high memory usage (often 1 GB or more) an...

You boot into Safe Mode after a failed Windows Update, but the screen stays blank. This usually m...