Software troubleshooting desk

Practical fixes for tool errors, setup blocks, and workflow issues.

Symptom

Cause

Fix route

Verify

Fresh repair notes

All notes

How to Fix Windows Defender File Locked Error 0x80070020

Error 0x80070020 often appears when Windows Defender (Microsoft Defender Antivirus) is scanning a...

Fix 'Git Push Rejected Non-Fast-Forward' Error

You try to push your local commits to a remote branch and Git stops you with: ! [rejected]<...

OBS Virtual Camera Not Showing in Google Meet: Fixes
You've set up OBS Studio, added your sources, and started the virtual camera—but when you open Go...

How to Kill a Process Using a Port in Command Prompt
When you try to start a local server or application and see an error like "port already in use" o...

How to Configure Windows Defender on macOS
If you're trying to configure Windows Defender on your Mac, you might be running into confusion b...

Windows Defender 404 Not Found Registry Fix
You open Windows Security and see a blank page or a '404 Not Found' error. This often happens aft...


    Issue queue
Sitemap
Fix Microsoft Edge When It Stops Responding
Chrome Update Blank Profile Screen Solution
Troubleshoot Chrome Service Unavailable
Enable PowerShell Scripts on Windows 11
Troubleshooting Connection Refused Error in Windows Terminal
Fix Windows Defender Offline Scan Not Working on Windows 10
Troubleshooting Windows Terminal 404 Error
Install SSL Certificate for Remote Desktop
Microsoft Store DNS Fix: Step-by-Step Guide
Fix BitLocker Startup Key Prompt After Settings Reset
How to Fix Chrome Profile 404 Not Found Sync Error
Fix Command Prompt Error 0xc0000142 on Windows
Desk note

    Troubleshooting paths
Home
Windows FixesmacOS HelpBrowser IssuesOffice ToolsDeveloper ToolsCloud SoftwareSecurity ToolsBackup RecoveryNetwork ToolsDatabase ToolsAI ToolsProductivity AppsCLI ErrorsDocker KubernetesEmail ClientsFile Utilities