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

How to Run Windows Defender Offline Scan to Remove Stubborn Malware

If your PC is acting sluggish, showing pop-ups, or Windows Defender keeps finding threats it can'...

Fix Microsoft Store Blank White Screen After Update

After a Windows update, you might open Microsoft Store and see only a blank white screen. This is...

Fix Microsoft Store Error 0x80072efd: Connection Refused

When you open Microsoft Store and see error 0x80072efd with the message "Connection refused," it ...

Fix Windows Security Service Error 0x80070422

You attempt to open Windows Security and get an error: "The service did not respond to the start ...

Fix Windows Defender Firewall Blocking Internet Connection

If your internet stops working after a Windows update or firewall configuration change, Windows D...

Fix VirtualBox Kernel Driver Not Installed on Windows 10