Jupyter Kernel Dead: Common Causes and Fixes
You're working in a Jupyter notebook, and suddenly the kernel dies. The notebook becomes unrespon...
Checklists for software errors, setup, and tool workflows.
1. Reproduce
2. Isolate
3. Apply
4. Verify
Latest checklists
View listFix Firefox Not Responding After Update: Practical Steps
After a Firefox update, some users find the browser becomes unresponsive—crashes, freezes, or won...
Fix Microsoft Store Proxy Error: Cannot Connect
When you open Microsoft Store and see “Cannot connect” or a proxy error, it usually means the app...
Fix Windows Terminal settings.json Not Working
You edit the settings.json file in Windows Terminal, save it, and expect the changes to apply imm...
Fix Windows Defender Token Expired Error After Reinstall
After reinstalling Windows or your security software, you might see a “token expired” error in Wi...
Fix Windows Activation Update Error 0x80070005
When you try to activate Windows or install an update, error 0x80070005 often appears with a mess...
Topic paths
Quick titles
Configuring Cloudflare Origin SSL CertificateFix Windows Search Blank Screen No ResultsFix Microsoft Store After System RestoreFix Edge Update Failed Error ChecklistWindows Activation Troubleshooting: File LockedRestart Windows Update Service EasilyWindows Activation Error 0xc004f074 Fix GuideWindows Defender 504 Timeout Troubleshooting Guide