Fix VirtualBox Kernel Driver Not Installed Error
When you try to start a virtual machine in VirtualBox and see "Kernel driver not installed (rc=-1...
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Browse labHow to Fix Windows Security 404 Not Found Error
If you see a '404 Not Found' error when opening Windows Security (formerly Windows Defender), the...
Fix Windows Defender Invalid Configuration via Group Policy
When Windows Defender reports an "invalid configuration" error, it's often due to conflicting or ...
How to Restore Windows Security Missing from Start Menu
If Windows Security (formerly Windows Defender) has disappeared from your Start Menu, it usually ...
Fix Windows Defender Rate Limit Error on Windows 11
You may see a rate limit error when using Windows Defender on Windows 11. This usually happens du...
Fix Windows Defender Access Denied Error Due to Malware
You try to open Windows Defender Security Center or run a scan, but get an 'Access Denied' error....