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

Fix Windows Defender Connection Refused Error 0x80070005

When you open Windows Defender (Microsoft Defender Antivirus) and see a connection refused error ...

Fix Windows Security Virus Protection Disabled Error

If Windows Security shows that virus & threat protection is disabled or turned off, you may see a...

BitLocker To Go Drive Not Recognized: Fixes to Try

You plug in a BitLocker To Go encrypted USB drive, but Windows doesn't show it in File Explorer. ...

VirtualBox Kernel Driver Installation Checklist

When VirtualBox fails to start a virtual machine with an error like “Kernel driver not installed”...

How to Add Folder Exclusions in Windows Defender

If Windows Defender is slowing down your workflow or flagging a trusted application, you can excl...

Fix SSH Permission Denied (publickey) on Raspberry Pi