1 mirror · Windows · Free
Pick from 1 verified mirror below. All deliver the same 83.1 MB file under the Freeware license.
1 available
About this software
Windows Defender Definition Updates : Install the latest Windows Defender definition updates and make sure your computer is safe from viruses, spyware and other malware at all times
Read the full Windows Defender Definition Updates review and feature list →
Requirements
Windows 10 64 bit / Windows 10 / Windows 8 64 bit / Windows 8 / Windows 7 64 bit / Windows 7 / Windows Vista 64 bit / Windows Vista
Tips
If a mirror is slow or temporarily offline, just pick another from the list above — every mirror serves the identical 83.1 MBfile. Each link launches a brief 5-second redirect page so we can track which mirrors are healthiest.
At a glance