Fix Windows Update 502 Bad Gateway Due to Firewall Settings
When Windows Update fails with a 502 Bad Gateway error, it often points to a network issue—common...
Software troubleshooting desk
Practical fixes for tool errors, setup blocks, and workflow issues.
Symptom
Cause
Fix route
Verify
Fresh repair notes
All notesCommand Prompt Update Troubleshooting Checklist
If Command Prompt fails to update or behaves unexpectedly after an update, the problem is often a...
Fix Windows Defender 504 Gateway Timeout & Permission Denied Errors
You open Windows Defender Security Center and see "504 Gateway Timeout" or "Permission Denied" er...
How to Fix Windows Defender High CPU Usage
If your system feels sluggish and Task Manager shows Windows Defender (Antimalware Service Execut...
Fix WinSCP Permission Denied Publickey Authentication
When connecting to a remote server with WinSCP using SSH public key authentication, you may see t...
Best Command Prompt Alternatives for Mac
If you're used to Windows Command Prompt and have switched to Mac, you'll find that macOS doesn't...
Issue queue
SitemapUsing Windows Defender Antivirus with Ubuntu
How to Fix Windows Search Not Starting on Boot
Ubuntu apt Lock Stuck: How to Fix Waiting for It to Disappear
Chrome Won't Launch Error 0xc0000022 Fix
Windows Terminal Cache Permission Denied: Quick Fix Guide
Microsoft Store Setup Configuration Checklist
Windows Defender Offline Scan: Step-by-Step Setup
Free Up Space from a Full Windows Update Cache
Fix DNS Probe Finished No Internet Error in Command Prompt
Windows Terminal PATH Setup Guide
Resolve BitLocker Encryption Setup Errors
Microsoft Store Won't Open After Offline Installer Fix
How to Fix Windows Search Not Starting on Boot
Ubuntu apt Lock Stuck: How to Fix Waiting for It to Disappear
Chrome Won't Launch Error 0xc0000022 Fix
Windows Terminal Cache Permission Denied: Quick Fix Guide
Microsoft Store Setup Configuration Checklist
Windows Defender Offline Scan: Step-by-Step Setup
Free Up Space from a Full Windows Update Cache
Fix DNS Probe Finished No Internet Error in Command Prompt
Windows Terminal PATH Setup Guide
Resolve BitLocker Encryption Setup Errors
Microsoft Store Won't Open After Offline Installer Fix