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

Fix Windows Activation Blank Screen After Boot

You’ve just activated Windows, but instead of seeing the desktop, you’re stuck on a blank screen....

Fix Microsoft Teams Not Opening on Startup in Windows 11

You’ve set Microsoft Teams to open when you log in, but it’s not starting. This is a common annoy...

Fix Windows Activation Error 0x80070057: Step-by-Step

When you see "Windows activation failed to start" with error code 0x80070057, it usually means th...

Fix Outlook Port Already Allocated in Exchange Server

When Outlook cannot connect to Exchange Server and you see an error like “Port already allocated”...

GitLab Runner Not Running Jobs: Troubleshooting Checklist

If your GitLab Runner shows as registered but never runs any jobs, or jobs stay stuck in 'pending...

How to Fix Remote Desktop 'Connection Refused' or 'Permission Denied'