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...
Checklists for software errors, setup, and tool workflows.
1. Reproduce
2. Isolate
3. Apply
4. Verify
Latest checklists
View listTask Scheduler 502 Bad Gateway: Causes and Fixes
If you see a 502 Bad Gateway error when running a scheduled task that calls a web service or API,...
Fix Windows Activation Service High CPU Usage on Windows 10
If you notice your Windows 10 system running slowly and Task Manager shows high CPU usage from 'W...
How to Fix MySQL Connection Refused and Permission Denied Errors
When you see ERROR 2003 (HY000): Can't connect to MySQL server on 'host' (111 Connection re...
How to Fix Microsoft Store Not Connecting to Internet
You open Microsoft Store and see an error message like “Check your connection” or the store fails...
Fix Windows Search 502 Bad Gateway Due to Proxy Settings
If Windows Search returns a 502 Bad Gateway error, it's often because the search service is tryin...
Topic paths
Quick titles
Task Scheduler Backup Best PracticesManual Windows Update Cache Clearing GuideResolve Microsoft Teams 404 Post-UpdateFix Windows Update Authentication Failed Due to Group PolicyPowerShell Connection Timeout Fix GuideFix BitLocker 'Cannot Access Drive Permission Denied' ErrorTroubleshooting PowerShell Execution Policy Permission ErrorFix 'Port Already in Use' Error with No Visible Process