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

MongoDB Compass: Authentication Failed vs Connection Refused

When using MongoDB Compass, you might see either "authentication failed" or "connection refused."...

How to Unlock APT in Ubuntu: Fix Locked Package Manager

If you see an error like 'Could not get lock /var/lib/dpkg/lock' or 'Unable to acquire the dpkg f...

Fix Microsoft Teams High Memory and CPU Usage

You open Task Manager and see Microsoft Teams using hundreds of MB of RAM and pegging the CPU. Th...

Fix Windows Update Stuck Loading After Restart

You restart your PC to finish installing updates, but Windows Update gets stuck on a spinning cir...

Fix 'Windows Defender Not Recognized' Error in Command Prompt

Fix Remote Desktop Version Mismatch After Update

After a Windows Update or RDP client update, you may see an error like “The remote computer r...