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

Fix PostgreSQL Password Auth Failure After Upgrade

After a PostgreSQL upgrade, you might see errors like "password authentication failed for user" o...

Fix Windows 11 Update Stuck on Loading Screen

You're updating Windows 11, and the screen shows a spinning circle or a progress bar that hasn't ...

Fix BitLocker Startup Key Prompt After Settings Reset

If you've recently reset your BIOS/UEFI settings, cleared the TPM, or updated firmware, you may s...

How to Fix Abnormal Memory Usage in CMD on Windows

How to Fix Microsoft Store Download Pending Error

You tap Install in Microsoft Store, but the download stays stuck on "Pending" and never starts. T...

Windows Activation Error 0xc004c003: Step-by-Step Fix

You see error 0xc004c003 when trying to activate Windows. It usually means the product key is val...