Ubuntu Command Prompt Not Working After Update: Fixes
After a system update, you might find that the Ubuntu command prompt (terminal) is not working—it...
Software troubleshooting desk
Practical fixes for tool errors, setup blocks, and workflow issues.
Symptom
Cause
Fix route
Verify
Fresh repair notes
All notesJupyter Kernel Connection Error: Causes and Fixes
You start a Jupyter notebook, try to run a cell, and see a message like "Kernel error" or "Connec...
Fix Chrome 'Invalid Configuration' or 'Permission Denied' Errors
If you see 'Invalid configuration' or 'Permission denied' when starting Chrome, the browser is us...
How to Fix PowerShell Not Opening on Windows 10
You click the PowerShell icon or type 'powershell' in the Start menu, but nothing happens—no wind...
How to Fix Windows Activation Not Working on Ubuntu
If you're running Windows on a machine that also has Ubuntu, you may see an activation error. Thi...
Fixing Remote Desktop Invalid Configuration for Network Level Authentication
When you try to connect to a remote computer using Remote Desktop (RDP) and see an error like "An...
Issue queue
SitemapHow to Resolve Windows Defender 502 Bad Gateway Setup Issue
Troubleshooting Outlook Outbox Errors
Fix Slow Network Drive Access in PowerShell
Re-enable Windows Security Antivirus Protection
Fix PowerShell Ubuntu Package Repository Errors
How to Restore Chrome Sync After a Failed Start
Windows Defender Rate Limit Fix Guide
Chrome ERR_CONNECTION_REFUSED Profile Fix
Fix Chrome Browser Log File Permission Denied Errors
Fix Chrome Reset Button That Does Nothing
Resolving Windows Security Version Mismatch Errors
Firefox Not Responding Windows 10 Fix
Troubleshooting Outlook Outbox Errors
Fix Slow Network Drive Access in PowerShell
Re-enable Windows Security Antivirus Protection
Fix PowerShell Ubuntu Package Repository Errors
How to Restore Chrome Sync After a Failed Start
Windows Defender Rate Limit Fix Guide
Chrome ERR_CONNECTION_REFUSED Profile Fix
Fix Chrome Browser Log File Permission Denied Errors
Fix Chrome Reset Button That Does Nothing
Resolving Windows Security Version Mismatch Errors
Firefox Not Responding Windows 10 Fix