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

How to Reduce OneDrive Sync Cache Size

OneDrive can use a lot of local disk space for its sync cache, sometimes growing to tens of gigab...

Windows Security Antivirus Not Detecting Threats: How to Fix

If you suspect Windows Security (formerly Windows Defender) is not detecting threats, you might s...

Fix Windows Defender Real-Time Protection Turning Off Automatically

If you notice Windows Defender real-time protection is turning off by itself, your PC may be vuln...

Fix Microsoft Store Invalid Configuration Sync Error

You open Microsoft Store and see a message about invalid configuration, or your apps won't sync. ...

Fix Outlook High CPU Usage Caused by Antivirus Scanning

Symptoms and Likely Cause

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

Fix Windows Update 404 Not Found Error: Practical Steps

When Windows Update returns a 404 Not Found error, it usually means the update server can't locat...