How to Fix Windows Defender Not Turning On
Windows Defender (now called Microsoft Defender Antivirus) sometimes refuses to turn on or stay o...
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Browse labFix Windows Defender Update Error 0x80070643
If you see error 0x80070643 when updating Windows Defender, it usually means the update failed du...
How to Fix Microsoft Store Not Opening
When you click the Microsoft Store icon and nothing happens—or it flashes and closes—it's usually...
How to Fix Windows Defender Proxy Error
If you see a proxy error in Windows Defender—often something like "Your IT administrator has limi...
How to Temporarily Turn Off Windows Security for Troubleshooting
If you're troubleshooting a stubborn app or driver issue, Windows Security (formerly Defender) mi...
Fix Chrome Update Error 12 on Windows 10
If you see "Update failed (error: 12)" when trying to update Google Chrome on Windows 10, the upd...