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

How to Fix Windows Security Module Not Found Error

You open Windows Security and see "Module not found" or a blank interface. This usually means a c...

Fix Windows Activation File Locked by Antivirus

If you see an error like “Windows activation file locked by antivirus” or activation repeatedly f...

How to Fix PostgreSQL Connection Refused Error

When you see "connection refused" while trying to connect to PostgreSQL, it usually means the cli...

Fix Outlook Error 0x80040154: Step-by-Step Guide

When Outlook fails to start with error 0x80040154, it usually points to a missing or misregistere...

Fix Windows Security Error 0x80070643 on Ubuntu Dual Boot

If you see error code 0x80070643 when running Windows Security or Windows Update on a dual-boot s...

Java JDK Not Recognized After Installation: Fixes and Checks