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 notesMongoDB Compass Cannot Connect to localhost:27017 – Fixes
You open MongoDB Compass, enter localhost:27017, click Connect, and get an error: “c...
Windows Activation Service Unavailable in Safe Mode: Fix
When you boot Windows into Safe Mode, you may see an error that the Software Licensing service (s...
How to Fix Microsoft Store Not Opening in Windows 11
If the Microsoft Store refuses to open on your Windows 11 PC, you're not alone. The app may crash...
How to Reset Microsoft Store SSL Certificate
If you see errors like 'Certificate not valid' or 'SSL connection error' when opening Microsoft S...
Fix Windows Security Error 0x80073b01: Step-by-Step Guide
You try to open the Windows Security app and get error code 0x80073b01. The app may crash or refu...
Issue queue
SitemapOutlook Not Receiving Emails: Common Fixes to Try
Microsoft Store Offline Installer Not Working? Try These Fixes
Why Windows Activator Won't Launch on Ubuntu
Windows 10 Microsoft Store Not Working Service Unavailable Fix
Fix Edge Crashing on Startup in Windows 10
OneDrive Sync Port Conflict Fix
How to Fix DNS Errors in Microsoft Teams Setup
Ubuntu WSL Defender False Positive Fixes
Fix Microsoft Teams High CPU Usage on Mac M1
Windows Update Service Stopped – How to Restart
Stop Windows Search Service to Free Up a Port
Fix Microsoft Teams Error Code cxa20001
Microsoft Store Offline Installer Not Working? Try These Fixes
Why Windows Activator Won't Launch on Ubuntu
Windows 10 Microsoft Store Not Working Service Unavailable Fix
Fix Edge Crashing on Startup in Windows 10
OneDrive Sync Port Conflict Fix
How to Fix DNS Errors in Microsoft Teams Setup
Ubuntu WSL Defender False Positive Fixes
Fix Microsoft Teams High CPU Usage on Mac M1
Windows Update Service Stopped – How to Restart
Stop Windows Search Service to Free Up a Port
Fix Microsoft Teams Error Code cxa20001