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

Fix Windows Security Path Not Found Error (Code 0x80070003)

When you open Windows Security (formerly Windows Defender Security Center) and see an error like ...

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...

How to Fix Microsoft Store File Locked Error

If you see a 'file locked' error when trying to install or update an app from the Microsoft Store...

Fix VirtualBox Kernel Driver Permission Denied on Linux

How to Fix Windows Security Connection Refused Error

You open Windows Security and see a "Connection refused" error when trying to update virus defini...

Fix Windows Activation Stuck on Activating Screen

You're trying to activate Windows, but the activation screen just sits there saying "Activating" ...