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

How to Repair a Corrupted Windows Security Log

If you see errors like "The security log is corrupted" or Event ID 1104 in the System log, Window...

Fix Windows Activation File Locked by Antivirus

If you see an error like “Windows activation file locked by antivirus” or activation repeatedly f...

How to Fix Windows Activation DNS Error

You try to activate Windows, but get a DNS error. The system can't reach the activation server. T...

Outlook Not Receiving Emails but Can Send: Fixes to Try

If you can send emails from Outlook but incoming messages never arrive, the problem is usually in...

Fix Microsoft Store App 404 Error on Windows 10

When you try to open or download an app from the Microsoft Store on Windows 10, you might see a 4...

Fix 'Windows Defender Not Recognized' Error in Command Prompt