
Fix Windows Security 'Permission Denied' Error When Settings Won't Open
You click Windows Security (formerly Windows Defender) and get a "Permission denied" or "This set...

You click Windows Security (formerly Windows Defender) and get a "Permission denied" or "This set...

You try to open a file or run a program, and Windows tells you access is denied. This usually com...

After a Windows update, you might find that Windows Security won't open, or it shows a blank wind...

You open Windows Security and see an error: "Invalid configuration" or "Your IT administrator has...

If Windows Defender won't start and you see an error about a dependency service or group failed t...

You're browsing in Chrome and suddenly get a persistent SSL certificate error—even on sites you k...