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Windows Defender Not Working After Update: Checklist

After a Windows Update, Windows Defender (now called Microsoft Defender Antivirus) may stop worki...

Fix Windows Defender Error 0x80070643 – Version Mismatch

You update Windows Defender and see error code 0x80070643. The update fails, and Defender may dis...

How to Reduce Task Scheduler Memory Usage

If you notice high memory usage by Task Scheduler (file: svchost.exe hosting T...

Fix Windows Defender High Memory Usage in Windows 11
You open Task Manager and see Windows Defender (Microsoft Defender Antivirus) using 500 MB or mor...

Windows Security Backup Sync Not Working? Fixes to Try
If your Windows Security backup isn't syncing, you might see a message like "Backup sync pending"...

Fix Windows Search Not Working Due to DNS Error
You search for a file or app in Windows, and nothing shows up, or you get an error like "Somethin...


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