Software troubleshooting desk

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

Symptom

Cause

Fix route

Verify

Fresh repair notes

All notes

Fix Windows Security App Blocked by Antivirus

You open Windows Security (formerly Windows Defender) only to see an error or blank screen becaus...

Fix Git 'index.lock file exists' Error

When you see the error fatal: Unable to create 'path/.git/index.lock': File exists....

Fix ERR_NAME_NOT_RESOLVED with ipconfig /flushdns in Chrome
When Chrome shows ERR_NAME_NOT_RESOLVED, it means the browser couldn't trans...

Windows Explorer Keeps Restarting in Windows 11: Fixes
If Windows Explorer keeps restarting on your Windows 11 PC, you'll see the taskbar and deskto...

Fix Nginx Permission Denied for Static Files
Common Causes
When Nginx returns a 403 Forbidden or 'permission denied' error for...

Fix Windows Security App Not Opening Command Prompt
You click the Windows Security icon or try to launch it from Settings, but nothing happens. Or pe...


    Issue queue
Sitemap
How to Fix Windows Update Error 0x80070002 with a Clean Boot
Chrome Startup Crash: Sandbox Fix Guide
Fix Python Virtual Environment Activation Failure
Understanding Git Detached vs Attached HEAD
Fix Windows Explorer Restarting with SFC Scannow
Resolve Nginx 13 Permission Denied Error
Fix Chrome Extensions That Fail to Load
Fix 'Port Already Allocated' Error in Docker Compose on Windows
How to Fix Docker Pull Access Denied Error
Fix Chrome Black Screen on Nvidia GPU with Hardware Acceleration
How to Enable Windows Defender Real-Time Protection via Registry
Resolve Chrome Sync Error Codes
Desk note

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