Software troubleshooting desk

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

Symptom

Cause

Fix route

Verify

Fresh repair notes

All notes

Fix 'Cannot Access File Because It Is Locked' in Command Prompt

When you try to delete, rename, or move a file in Command Prompt and see the error "The process c...

Fix Windows Defender Permission Denied Registry Error

When you try to modify Windows Defender settings through the registry, you might see an error lik...

Fix Outlook Connection Refused Error in IMAP Settings

When Outlook shows a "connection refused" error while setting up or using an IMAP account, it usu...

Fix Windows Activation Blocked by Proxy Server

If Windows activation fails with an error like “We can’t activate Windows on this device because ...

Fix Chrome DNS_PROBE_FINISHED_NXDOMAIN Error

You're trying to load a website in Chrome, but instead you see: This site can't be reache...

Fix Windows Activation Blocked by Firewall
If Windows activation fails with an error about a blocked firewall, your PC likely can't reach Mi...

Issue queue
Sitemap
Understanding Outlook's Rate Limit Error Code
Fix Windows Defender Error 0x800106ba: Failed to Start
Fix Outlook Login Loop by Clearing Credentials
Fix PowerShell Blank Screen with No Cursor
Fix Microsoft Store DNS Error on Windows 10
How to Fix Microsoft Teams 502 Bad Gateway on Windows 11
How to Resolve Server Timeout During Windows Activation
Fix OneDrive DNS Error 0x8004de40 – Step-by-Step Guide
Outlook 502 Bad Gateway Fix Checklist
Fix OneDrive Sync Setup Access Denied Errors
Recover Chrome Profile After Fresh Install
Windows Defender 404 Not Found Registry Fix
Desk note

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