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...
Checklists for software errors, setup, and tool workflows.
1. Reproduce
2. Isolate
3. Apply
4. Verify
Latest checklists
View listCreate a New Firefox Profile When Your Old One Goes Missing
If Firefox fails to start or you see a message that your profile is missing, it's often due to a ...
Fix 'Module Not Found' Error for Microsoft Teams on Mac
If you're seeing a 'module not found' error when launching Microsoft Teams on your Mac, the app l...
How to Fix Microsoft Teams Blank Screen on Startup
You open Microsoft Teams, see the login screen, and then—nothing. A blank white or gray screen. T...
How to Fix Chrome 504 Gateway Timeout Error
When you see a 504 Gateway Timeout error in Chrome, it means the server you're t...
Fix Windows Defender Service Permission Denied Error
You try to start Windows Defender or change its settings and get an error like 'Service permissio...
Topic paths
Quick titles
Resolve Chrome Permission Denied on ProfileWindows Activation Product Key Not Accepted: Fixes That WorkHow to Stop Command Prompt Rate LimitingHow to Fix Chrome Command Line Profile Path ErrorFix Outlook 'Not Connecting to Server' Network ErrorTroubleshooting Nginx 404 When Root Path Is ChangedHow to Fix Windows Security High CPU UsageFix 7-Zip Cannot Open File as Archive on Windows 10