Fix Windows Defender Engine Unavailable Windows 11/10 [Solution]

Fix Windows Defender Engine Unavailable Windows 11/10 [Solution]

Commands Used:
sc start WinDefend Enable
Dism /Online /Cleanup-Image /RestoreHealth

Windows Defender is a crucial built-in antivirus software that helps protect your computer from various types of malware and security threats. However, users might encounter a common issue where the Virus & threat protection feature in Windows Defender displays an error message saying "Engine Unavailable" which prevents it from scanning for viruses and leaving your system vulnerable.

Issues addressed in this tutorial:
windows defender engine unavailable
windows defender engine unavailable fix
windows defender engine unavailable windows 10
windows defender update engine unavailable
windows defender virus and threat protection updates engine unavailable
windows defender is blank
windows defender not showing anything
windows defender stopped working
windows defender not working
windows defender antivirus engine unavailable
windows defender exclusions not working
windows defender error code 0x80016ba
engine unavailable windows defender

Windows Defender acts as the primary antivirus app on your Windows device. However, sometimes you may encounter the error message saying “virus and threat protection engine unavailable”.

This tutorial will apply for computers, laptops, desktops, and tablets running the Windows 10 and Windows 11 operating systems (Home, Professional, Enterprise, Education) from all supported hardware manufactures, like Dell, HP, Acer, Asus, Toshiba, Lenovo, Alienware, Razer, MSI, Huawei , Microsoft Surface, and Samsung.