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

How to Setup SSL Certificate for Windows Update

If Windows Update fails with errors like 0x80072F8F or 0x8024402C, the problem might be a missing...

SSH Permission Denied (Publickey) on EC2: Setup Fixes

If you're seeing "Permission denied (publickey)" when trying to SSH into an AWS EC2 instance, the...

Fix Chrome DNS Server Not Responding on Windows 10

When Chrome shows 'DNS server not responding' on Windows 10, it usually means the browser can't r...

Run a Single PowerShell Script Without Changing Execution Policy

You need to run a PowerShell script, but the execution policy is set to Restricted. You don't wan...

Task Scheduler Backup Restore Checklist: 7-Step Guide

If your scheduled tasks stop running or disappear after a system change, you likely need to resto...

How to Fix Outlook Proxy Authentication Failed Error