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

Jupyter Kernel Connection Error: Causes and Fixes

You start a Jupyter notebook, try to run a cell, and see a message like "Kernel error" or "Connec...

Outlook Shared Mailbox Migration: Setup and Troubleshooting

When migrating shared mailboxes to a new Exchange environment or Office 365 tenant, users often r...

How to Fix Remote Desktop Backup Restore Failed

When a Remote Desktop backup restore fails, you typically see an error like “Restore failed – una...

Fix Windows Terminal 'File Locked by System' Error

When you try to open or edit a file in Windows Terminal and see "The file is locked by the system...

Outlook High CPU Usage: Troubleshooting Checklist

If Outlook is using 30% or more CPU for extended periods, your system slows down and battery drai...

Fix PowerShell 'Path Not Found Permission Denied' Error