Norton Virus Definitions 21st April 2018 (64-bit) LATEST
Windows XP64 / Vista64 / Windows 7 64 / Windows 8 64 / Windows 10 64
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Norton Virus Definitions (64-bit) 2018 full offline installer setup for PC
The Norton Virus Definitions 64-bit allows manual update of your Norton AntVirus and Norton Security in case that you do not have internet connection or in case auto update fails.
To manually update virus definitions download and run the apropriate file (32-bit or 64-bit) and follow the instructions.
Also Available: Download Norton Security