Check Which Process Is Using a Port on Windows
When a service or application fails to start because a port is already in use, you need to identi...
Software troubleshooting desk
Practical fixes for tool errors, setup blocks, and workflow issues.
Symptom
Cause
Fix route
Verify
Fresh repair notes
All notesJupyter Notebook Token Not Working? How to Reset Password
You start Jupyter Notebook, see the token prompt, paste the token from the terminal, but it fails...
Fix PowerShell Assembly Cache Not Updating
You’ve updated a .NET assembly in the Global Assembly Cache (GAC) or copied a new DLL into a modu...
Fix Windows Update Error 0x80070005 Caused by Antivirus
You try to install Windows updates and see error 0x80070005, often with a message like "Access de...
Fix Outlook Startup Error: Cannot Open the Outlook Window
When Outlook refuses to open and displays the error 'Cannot open the Outlook window. The set of f...
How to Fix Windows Update Error 404 Not Found
You see error 404 when checking for updates in Windows Update. This usually means the update serv...
Issue queue
SitemapRemote Desktop Cache Troubleshooting Guide
Troubleshooting Windows Update Command-Line Issues
OneDrive Proxy Setup: Troubleshooting and Fixes
Fix 'Command Not Found' and 'Permission Denied' Errors in Windows Command Prompt
Auto Start Command Prompt on Windows Login
Microsoft Teams Token Expired Error Fix
Fix SSH Host Key Verification Failed
Resolve Windows Defender DNS Server Not Responding
Where Are PowerShell Log Files Stored?
Troubleshooting 0x80073cf0 in Microsoft Store
How to Resolve Antivirus Blocking Windows Terminal Update
How to Reduce Windows Terminal CPU Usage
Troubleshooting Windows Update Command-Line Issues
OneDrive Proxy Setup: Troubleshooting and Fixes
Fix 'Command Not Found' and 'Permission Denied' Errors in Windows Command Prompt
Auto Start Command Prompt on Windows Login
Microsoft Teams Token Expired Error Fix
Fix SSH Host Key Verification Failed
Resolve Windows Defender DNS Server Not Responding
Where Are PowerShell Log Files Stored?
Troubleshooting 0x80073cf0 in Microsoft Store
How to Resolve Antivirus Blocking Windows Terminal Update
How to Reduce Windows Terminal CPU Usage