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

Fix Windows Activation Backup Restore Failure After Update

After a Windows update, you might see an error when trying to restore an activation backup. The b...

Fix Windows Defender Auto Start Not Working in Windows 10

If you find that Windows Defender isn't starting automatically when you boot Windows 10, your sys...

Fix 'Port Already in Use' Error When No Process Shows

You try to launch Chrome or a Chrome-based tool (like Puppeteer, Selenium, or a local dev server)...

Chrome Extension Not Working After Update: Fixes

You update Chrome, and suddenly a favorite extension stops working—buttons missing, features gray...

Fix 'Windows Security Authentication Failed' for Domain Credentials

Fix BitLocker Cannot Connect to Windows Hello Error

You may see the error 'BitLocker cannot connect to Windows Hello' when trying to set up or manage...