Knowledge base for software setup, errors, and daily tool work.

Fix OneDrive Blank Screen Error 0x8004de40

You open OneDrive and see a blank screen with error code 0x8004de40. This usually means the app c...

Fix Outlook Email Sync Failed on Ubuntu

Outlook email sync fails on Ubuntu: what to check

If Outlook (via web browser, Evolution,...

PowerShell Migration Sync Issue Troubleshooting Guide

When migrating data with PowerShell scripts, sync issues can halt progress. Below are common caus...

OneDrive SSL Certificate Expired: Troubleshooting and Fixes

If OneDrive suddenly stops syncing or shows an error about an SSL certificate being expired, it's...

Command Prompt Dependency Conflict Troubleshooting Checklist

Fix 'File Locked by Unknown Process' in Command Prompt

You try to delete, rename, or move a file, but Windows says it's locked by an unknown process. Th...