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Fix 'Port Already Allocated' Error in Windows Defender

You open Windows Defender Security Center or try to run a scan, and you see an error saying a por...

Fix Windows Update Proxy Errors After Network Change

If you recently switched networks—say, from a corporate VPN to a home Wi-Fi—and Windows Update no...

Fix 504 Gateway Timeout After Windows Update

After installing a recent Windows update, you might see a 504 Gateway Timeout error when browsing...

Fix OneDrive Sync Pending on Shared Folders

You open OneDrive and see “Sync pending” on a shared folder. Files aren’t downloading or uploadin...

Troubleshoot PowerShell Module Not Loading

When a PowerShell module won't load, you'll usually see an error like Import-Module : The s...

Fix Windows Defender Service Authentication Failed Error
You might see the error 'Windows Defender service authentication failed' when trying to open Wind...


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