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

MongoDB Compass Connection Refused After Update – Fixes

If you updated MongoDB Compass and now see a 'connection refused' error when trying to connect to...

Fix PowerShell Blank Screen on Windows 11

If you open PowerShell on Windows 11 and see nothing but a blank window—no prompt, no text—the sh...

Fix Microsoft Teams Blank Screen by Disabling Hardware Acceleration

If Microsoft Teams shows a blank or black screen on startup or during a call, hardware accelerati...

Fix BitLocker High Memory Usage After Windows Update

Why BitLocker Memory Usage Spikes After an Update

After a Windows update, some users noti...

Fix High CPU Usage by MsMpEng.exe (Windows Defender)

If your system feels sluggish and Task Manager shows MsMpEng.exe using 30–100% CPU, Windows Defen...

Fix Command Prompt Version Mismatch Error

When you open Command Prompt and see a version mismatch error, it usually means the system cannot...