How to Reinstall the Windows Security App (Microsoft Defender)
If the Windows Security app (Microsoft Defender) is missing, won’t open, or shows errors, reinsta...
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Browse labFix Windows Security Antivirus Not Turning On
You open Windows Security and see that the antivirus is off, with no obvious way to turn it on. T...
How to Fix Chrome Authentication Failed Due to Proxy Settings
If you see 'authentication failed' in Chrome when trying to access a website, your proxy settings...
How to Fix Access Denied Error in Windows Security
You try to open Windows Security or change a setting, and you get an "Access Denied" message. Thi...
How to Fix Windows Update Error 0x800f081f
When you see error 0x800f081f during a Windows update, it usually means the update package is mis...
Fix Outlook Authentication Failed When Sending Email
If you get an authentication failed error when sending email in Outlook, the problem is usually a...