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

Avoid Windows Activation Version Mismatch on Reinstall

You reinstall Windows, enter your product key, and get an error: “This product key does not match...

MongoDB Authentication Failed: Administrator Checklist

Fix Microsoft Teams SSL Certificate Error: Invalid Certificate

When you see "SSL certificate error: invalid certificate" in Microsoft Teams, the app may fail to...

Fix Outlook Rate Limit Exceeded Error (Code Explanation)

If you use Outlook with add-ins, scripts, or third-party integrations, you might see an error lik...

Fix Microsoft Teams Sync Issues with Outlook Calendar

You update a meeting in Outlook but Teams doesn’t show the change, or vice versa. This guide cove...

Fix Outlook Auto-Start Not Working After Reinstall

After reinstalling Outlook, you may find that it no longer opens automatically when you start Win...