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

Fix Outlook High CPU Usage Caused by Antivirus Scanning

Symptoms and Likely Cause

You notice Outlook consuming 50% or more CPU, making your syste...

Fix Firefox Secure Connection Failed Certificate Errors

You try to open a website in Firefox and see a full-page error: "Secure Connection Failed" with a...

Setup Windows Update Configuration via Group Policy

When managing multiple Windows machines, configuring Windows Update settings individually is impr...

Windows Defender Scan Stuck at Certain Percentage: Fixes That Work

If you run a Windows Defender scan and it stalls at the same percentage every time—often 85%, 93%...

Fix PuTTY Connection Refused: Check SSH Service

When you see 'Connection refused' in PuTTY, it usually means the SSH server on the remote machine...

Fix Microsoft Store Installation Failed Error Code

When you try to install or update an app from the Microsoft Store, you might see an error code li...