SSH Permission Denied (Publickey) on EC2: Setup Fixes
If you're seeing "Permission denied (publickey)" when trying to SSH into an AWS EC2 instance, the...
Software troubleshooting desk
Practical fixes for tool errors, setup blocks, and workflow issues.
Symptom
Cause
Fix route
Verify
Fresh repair notes
All notesWindows Terminal Error 0x80070005: Fix Access Denied
If you see error code 0x80070005 when launching Windows Terminal, it usually means the app can't ...
Fixing Microsoft Teams Connection Timeout from Firewall Settings
If Microsoft Teams frequently shows "connection timeout" errors, your firewall or proxy settings ...
Fix High CPU Usage by MsMpEng.exe (Windows Defender)
If your system feels sluggish and Task Manager shows MsMpEng.exe using 30–100% CPU, Windows Defen...
How to Fix Chrome Extension Configuration Errors
You installed a Chrome extension, but it shows a configuration error—maybe a red exclamation mark...
How to Fix Cloudflare DNS Not Resolving Error 1016
If you're seeing error 1016 when trying to reach a site behind Cloudflare, it means the DNS looku...
Issue queue
SitemapTroubleshoot Windows Security Loading Issues
Outlook 0x80040115 Connection Refused Fix
Task Scheduler Token Expired Error – Step-by-Step Guide
How to Repair Corrupted Windows Defender Service
Command Prompt SSL Certificate Error Fix
Troubleshoot Windows Search Showing Empty Results
Outlook 2016 Stuck on Blank Screen? Try These Fixes
Fix Real-Time Protection Off in Windows Security
How to Resolve Activation Service Unavailable Error
Windows Terminal Common Issues and Fixes
Fix Windows Store Download Queue Not Moving
Fix 'Windows Security Application Not Found' on Ubuntu
Outlook 0x80040115 Connection Refused Fix
Task Scheduler Token Expired Error – Step-by-Step Guide
How to Repair Corrupted Windows Defender Service
Command Prompt SSL Certificate Error Fix
Troubleshoot Windows Search Showing Empty Results
Outlook 2016 Stuck on Blank Screen? Try These Fixes
Fix Real-Time Protection Off in Windows Security
How to Resolve Activation Service Unavailable Error
Windows Terminal Common Issues and Fixes
Fix Windows Store Download Queue Not Moving
Fix 'Windows Security Application Not Found' on Ubuntu