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Windows Security Antivirus Configuration for Beginners

Windows Security (formerly Windows Defender) is the built-in antivirus in Windows 10 and 11. For ...

How to Fix Windows Defender Blank Screen Issue

If you open Windows Defender (now called Windows Security) and see only a blank white or black sc...

Fix PowerShell Access Denied for Set-ExecutionPolicy

When you try to change the execution policy in PowerShell with Set-ExecutionPolicy a...

Fix Windows Activation Backup Restore Error 0x80070057

When you try to back up or restore Windows activation using the slmgr /upk or ...

Fix DNS Client Service Not Running in Command Prompt
When you run commands like ipconfig /flushdns or ipconfig /registerdns ...

How to Clear PowerShell Cache Completely
PowerShell caches data to speed up module loading, command discovery, and history lookup. However...


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