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

Fixing Windows Security 502 Bad Gateway Errors

If you see a 502 Bad Gateway error in Windows Security (or the Windows Defender portal), it usual...

Outlook Shared Mailbox Migration: Setup and Troubleshooting

When migrating shared mailboxes to a new Exchange environment or Office 365 tenant, users often r...

Fixing GitHub Actions Permission Denied for Git Commands

Fix Python Module Not Found Permission Denied Error

You run a Python script and get ModuleNotFoundError with a permission denied message...

Using Windows Defender on Ubuntu: What Actually Works

If you're trying to use Windows Defender on Ubuntu, you've likely run into a fundamental problem:...

Fix 504 Gateway Timeout After Windows Update

After installing a recent Windows update, you might see a 504 Gateway Timeout error when browsing...