To fix office activation issue, Microsoft has provided a registry repair tool that clears the activation information, allowing for re-activation.
Fixes
Chinese Guy Fixed His Surface Pen Using a Gas Stove
Many Surface Pen users have encountered issues with the pen tip malfunctioning. A genius Chinese guy fixed it using a gas stove. Amazing! You must have a try.
An All-in-One Solution for Network Problems on Your Windows
Network problems are always annoying. It always takes a lot of time to fix. In fact, there is an built-in AIO solution for network problems.