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

Outlook 404 Not Found on Shared Mailbox: Fixes & Checks

You try to open a shared mailbox in Outlook and see a 404 Not Found error. This usually means Out...

Fix Windows Defender Threat Service Stopped & No Internet

You open Windows Security and see 'Threat service has stopped. Restart it now.' At the same time,...

How to Fix PowerShell Blank Screen on Startup

When PowerShell opens to a blank screen with no prompt or output, the shell is usually loading a ...

Fix Windows Activation Error 0x80070005: File Locked

When activating Windows, you might see error 0x80070005 with a message that a file is locked. Thi...

Remote Desktop Not Working Over VPN: Practical Fixes

You’re connected to your company VPN, but Remote Desktop (RDP) won’t connect to the target machin...

How to Fix 'npm command not found' on Mac