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

Fix PowerShell 504 Gateway Timeout via Proxy Settings

When PowerShell commands return a 504 Gateway Timeout, it often means the proxy ...

How to Fix Windows Update Access Denied Error in Command Prompt

How to Fix Go Modules Proxy Timeout Error

When running go build, go get, or go mod download, you mig...

Fix Windows Activation Update Error 0x80070005

When you try to activate Windows or install an update, error 0x80070005 often appears with a mess...

OpenVPN Connection Failed: Check Firewall Settings

You see "connection failed" in your OpenVPN client log. The server is reachable, but the handshak...

Fixing Redis Connection Refused and Permission Denied Errors

When you see connection refused or permission denied while trying to co...