Windows Defender Authentication Failed: Step-by-Step Checklist
You open Windows Security and see 'Authentication failed' when trying to use Windows Defender. Th...
Software troubleshooting desk
Practical fixes for tool errors, setup blocks, and workflow issues.
Symptom
Cause
Fix route
Verify
Fresh repair notes
All notesFix OneDrive Sync Error 0x8007017c on Mac
You're syncing files in OneDrive on your Mac when a notification pops up: "We can't sync this fil...
Fix Chrome Not Opening Automatically at Boot on Windows
You set Chrome to open automatically when you boot your PC, but it doesn't. This is a common issu...
Chrome 502 Bad Gateway Error: Practical Fixes
You're browsing and suddenly get a 502 Bad Gateway error in Chrome. The page won't load, and you'...
Quick Fix for Microsoft Teams Error Code CXA20001
If you see error code CXA20001 when signing into Microsoft Teams, the app is usu...
Fix Windows Defender Version Mismatch Sync Issues Between Devices
If you manage multiple Windows devices and notice that Windows Defender shows different security ...
Issue queue
SitemapFind Windows Search Indexer Log Files
pnpm frozen-lockfile vs lockfile: Key Differences
Fix Windows Update Token Expired Error with Clean Boot
How to Fix Microsoft Store High CPU Usage and Permission Errors
Fix RDP Proxy Authentication Failed
How to Set Up RDP Credentials for Domain Users
Troubleshooting Outlook Invalid Configuration Error
Fix pnpm Store Permission Denied When Using nvm Node Version
How to Fix PowerShell Permission Denied
Remote Desktop Lag Fixes: A Practical Checklist
Resolve Error 0x80070057 During Windows Activation Backup
How to Whitelist a Folder in Windows Defender
pnpm frozen-lockfile vs lockfile: Key Differences
Fix Windows Update Token Expired Error with Clean Boot
How to Fix Microsoft Store High CPU Usage and Permission Errors
Fix RDP Proxy Authentication Failed
How to Set Up RDP Credentials for Domain Users
Troubleshooting Outlook Invalid Configuration Error
Fix pnpm Store Permission Denied When Using nvm Node Version
How to Fix PowerShell Permission Denied
Remote Desktop Lag Fixes: A Practical Checklist
Resolve Error 0x80070057 During Windows Activation Backup
How to Whitelist a Folder in Windows Defender