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

How to Clear SSH Known Hosts and Fix Host Key Verification Failed

Fix PowerShell Memory Leak and High RAM Usage

PowerShell consuming more RAM than expected, especially over time, usually points to a memory lea...

Fix Windows Activation Invalid Configuration Registry Error

You try to activate Windows, but instead get an error message saying the activation configuration...

Remote Desktop Ubuntu: Secure Configuration Checklist

Setting up remote desktop on Ubuntu is straightforward, but securing it requires deliberate steps...

Fix Windows Security Login Loop: Step-by-Step

You sign in to Windows, see the desktop briefly, then get kicked back to the login screen. This l...

Fixing PostgreSQL Connection Refused and Permission Denied

When you try to connect to PostgreSQL and get "connection refused" or "permission denied", the pr...