Stay safe.
It stays active as long as no other antivirus is installed. windows defender windows 8 download 64-bit
If you see this, your hardware and OS are capable of handling the robust security features of the modern Windows Defender engine. Stay safe
If your search revealed that the app exists but is inactive, you need to enable it. This is the most common solution for users searching for a "download." click Turn on now .
: In the "Security" section, look for "Virus protection." If it’s off, click Turn on now .