UFW Port Closed Despite Allow Rule: Fixes
You've added a UFW allow rule for a port, but a port scan or service test shows the port is still...
Software troubleshooting desk
Practical fixes for tool errors, setup blocks, and workflow issues.
Symptom
Cause
Fix route
Verify
Fresh repair notes
All notesFix Windows Security Migration Slow Performance
When migrating Windows Security settings—whether during an OS upgrade, a system rebuild, or a dom...
BitLocker Best Settings and Fix for Error 0x8031004a
If you're seeing BitLocker error 0x8031004a, it usually means the Trusted Platform Module (TPM) i...
Fix Microsoft Store Version Mismatch: Setup Guide
You try to install or update an app from the Microsoft Store and get a version mismatch error. Th...
Fix OBS Black Screen When Recording: Checks That Work
If you see a black screen when recording with OBS Studio, your video source isn't being captured....
How to Fix Windows Defender 'Command Not Found' Error
You open Command Prompt to run MpCmdRun.exe or Get-MpPreference and get...
Issue queue
SitemapResolve OneDrive Sync Error 0x8004de40 and High CPU
Collect Windows Update Logs for Troubleshooting
How to Clear Windows Defender Cache with a Tool
Fix Windows Defender Threat Service Stopped Error
Chrome DNS Error Troubleshooting Guide
Windows Security Offline Installer: Checklist & Steps
Troubleshoot Outlook Connection Refused
Fix 'Windows Security Blocked This File' Error
OneDrive Sync Queue Troubleshooting Guide
How to Fix Defender Authentication Error in Group Policy
Microsoft Teams File Sync Stuck – How to Fix
Fix Remote Desktop DNS Error After Network Change
Collect Windows Update Logs for Troubleshooting
How to Clear Windows Defender Cache with a Tool
Fix Windows Defender Threat Service Stopped Error
Chrome DNS Error Troubleshooting Guide
Windows Security Offline Installer: Checklist & Steps
Troubleshoot Outlook Connection Refused
Fix 'Windows Security Blocked This File' Error
OneDrive Sync Queue Troubleshooting Guide
How to Fix Defender Authentication Error in Group Policy
Microsoft Teams File Sync Stuck – How to Fix
Fix Remote Desktop DNS Error After Network Change