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

How to Fix OneDrive 404 Error When Opening Shared Files

When you click a shared OneDrive link and see a 404 error, the file is not deleted or corrupted—u...

Remote Desktop Token Expired After Password Change: Fixes

If you changed your Windows password and now remote desktop connections fail with a token expired...

Fix Windows Update Download Stuck on Ubuntu Dual Boot

If you're running Ubuntu alongside Windows and Windows Update gets stuck—especially at 0% or 99%—...

Fix SQL Server Connection Refused Error in CMD

When you try to connect to SQL Server from the command line (using sqlcmd or another...

Fix Remote Desktop Token Expired Error

You're connected to a remote machine and suddenly get a "token expired" error. This usually happe...

Fix Outlook Email Sync Failed on Ubuntu

Outlook email sync fails on Ubuntu: what to check

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