Software comparisons, alternatives, and tool decision notes.

Fix Windows Defender Service Not Starting (Error 0x80070422)

You try to start Windows Defender but get error 0x80070422: “The service cannot be started, eithe...

Fix Windows Search Rate Limit Error in Windows 11

If you're seeing a “rate limit” error when using Windows Search in Windows 11, it usually means y...

Fix Docker Build Error: 'failed to solve: manifest not found'

You run docker build and get an error like:

failed to solve: error fetching ...

Jupyter Kernel Not Starting in VS Code: Quick Fixes

You open a Jupyter notebook in VS Code, try to run a cell, and the kernel either hangs on "Starti...

Remote Desktop Not Connecting After Update: 5 Fixes

After a Windows update, Remote Desktop may refuse to connect. This is a known issue caused by cha...

Fix Windows Activation Sync Issue Between Windows and Ubuntu

If you dual-boot Windows and Ubuntu and suddenly see a “Windows isn’t activated” message, the iss...