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

Nginx 404 Not Found Troubleshooting Checklist

When nginx returns a 404 Not Found error, it means the server is running but cannot locate the re...

Fix BitLocker High Memory Usage After Windows Update

Why BitLocker Memory Usage Spikes After an Update

After a Windows update, some users noti...

Fix Command Prompt Invalid Configuration Sync Error

When you see an "invalid configuration" error during a sync operation in Command Prompt, it usual...

Fix Outlook High CPU Usage Caused by Antivirus Scanning

Symptoms and Likely Cause

You notice Outlook consuming 50% or more CPU, making your syste...

Outlook Token Expired When Sending Email: Fixes & Checks

You're composing an email in Outlook, hit Send, and get an error about an expired token. This usu...

How to Fix 'Windows Update Cannot Connect to Internet' Error

When Windows Update reports it cannot connect to the internet, it usually means something is bloc...