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

Fix Outlook High CPU Usage on Windows 10

If Outlook is slowing down your Windows 10 PC and showing high CPU usage in Task Manager, it can ...

Fix Windows Defender 504 Gateway Timeout & Permission Denied Errors

You open Windows Defender Security Center and see "504 Gateway Timeout" or "Permission Denied" er...

Fix PowerShell Permission Denied for Network Drive

When you run a PowerShell script or command that accesses a network drive, you may see an error l...

Jupyter Kernel Dead: Common Causes and Fixes

You're working in a Jupyter notebook, and suddenly the kernel dies. The notebook becomes unrespon...

Fix Windows Defender 502 Bad Gateway Sync Error

If you see a "502 Bad Gateway" error when Windows Defender tries to sync, it usually means a temp...

How to Fix Outlook Rate Limit Error in Office 365

Understanding the Error

You may see a message like "Too many requests" or "Server busy" ...