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Checklist to Resolve Windows Search Authentication Failed

You open Windows Search, type a query, and get an error like “Windows Search authentication faile...

Fix Windows Security High Memory Usage Error

If you notice your system slowing down and Task Manager shows Windows Security (or Antimalware Se...

How to Fix High Memory Usage by Command Prompt (cmd.exe)

You open Task Manager and see that Command Prompt (cmd.exe) is using 500 MB or more of RAM. That'...

Fix Windows Search Error 0x80070490: Version Mismatch

If you see error 0x80070490 when searching in Windows, it usually means a component version misma...

Fix Windows Defender Blocked by Group Policy Permission Denied

You try to open Windows Defender Security Center or run a scan, but get an error: "Windows Defend...

Fix Command Prompt Service Unavailable After Update