Knowledge base for software setup, errors, and daily tool work.

Fix PowerShell Stuck on Loading PowerShell 7

You launch PowerShell 7, and the window shows “Loading PowerShell 7” indefinitely. The prompt nev...

Fix Windows Activation Version Mismatch After Upgrade

After upgrading Windows—whether from Home to Pro or from an older build to a newer one—you might ...

Fix Windows Defender DNS Error 0x800704cf

You open Windows Defender and see error code 0x800704cf. This usually means Windows Defender can’...

Fix Windows Defender Service Not Starting (Connection Refused)

When you see 'Windows Defender service not starting – connection refused', it usually means the s...

Fix Windows Activation Command Error 0x80070002