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

Jupyter Kernel Not Starting After Update: Fixes

After updating Jupyter or its dependencies, you might see the kernel die immediately or hang with...

Fix Windows Activation Error 0xc004f074 via Command Line

Windows activation error 0xc004f074 usually appears when the operating system can't reach the KMS...

How to Reset Microsoft Store Settings in Windows 11

If the Microsoft Store isn't loading, won't download apps, or throws errors like 0x80131500, a se...

Fix Windows Security Service Failed to Start Error 0x80070422

You see the error "Windows Security service failed to start" with code 0x80070422. This usually m...

Resolving npm Dependency Conflicts After an Update

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...