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Fix Windows Activation Service Unavailable Without Product Key

You see 'Windows activation service unavailable' and you don't have the product key. This usually...

Fix PowerShell Proxy Authentication Failed Errors

How to Fix Task Scheduler Invalid Configuration Error

You see "Task Scheduler invalid configuration" when opening a task or trying to run it. The error...

Fix Windows Defender Module Not Found in Windows 10

You open Windows Security and see 'Windows Defender module not found' or a similar error. This us...

Windows Defender Troubleshooting Guide for IT Admins

Windows Defender (Microsoft Defender Antivirus) is the default endpoint protection in Windows 10 ...

Fix Windows Search Error 0x80070490: Cannot Connect

If you see "Windows Search cannot connect" with error code 0x80070490, it usually means the Windo...