Checklists for software errors, setup, and tool workflows.

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Fix Windows Activation Error 0x80070002 (Dependency Conflict)

You try to activate Windows and get error 0x80070002. The message often says something like “depe...

Fix OneDrive Sync Permission Denied & 504 Gateway Timeout

If you see "permission denied" or "504 gateway timeout" errors while syncing OneDrive, the issue ...

Fixing npm Dependency Conflicts from Duplicate Packages

You run npm install and see warnings about unmet peer dependencies or conflicting ve...

Fix Windows Security 502 Bad Gateway Error

If you're seeing a "502 Bad Gateway" error when opening Windows Security (also known as Windows D...

Fix 'java' Not Recognized in Command Prompt on Windows

When you type java -version or javac in Command Prompt and get 'jav...

Fix Windows Defender Error 0x80070422: Won't Turn On
If you see error code 0x80070422 when trying to turn on Windows Defender, it usually means the re...