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

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...

How to Fix Microsoft Teams Not Launching

If Microsoft Teams opens briefly then closes, or fails to start at all, the problem is often loca...

DNS Error When Updating Windows 10: Quick Fixes

When updating Windows 10, you might see an error like "There were some problems installing update...

Certbot Renewal Failed Due to Nginx Configuration: How to Fix

Fix Task Scheduler Sync Issues with Network Drives

You set up a scheduled task to copy files to a network drive, but it runs and does nothing — or g...

Fix Microsoft Teams Startup Folder Not Working

If you have added Microsoft Teams to your Windows startup folder but it doesn't launch automatica...