Windows Defender Definition Updates is the update definitions file to ensure that the Windows Defender package remains up to date. Windows Defender was originally a malware scanner and removal application for Windows 98. Microsoft purchased Giant AntiSpyware, written in VisualBasic in 2006 and then redeveloped the app in C++ which made it run faster. The app was originally given away with versions of Windows, but with Windows Vista and 7 the app morphed into an anti-virus app as well. It is important to keep Windows Defender definition files updated to ensure all known viruses are caught before the PC becomes infected.

Windows Defender Definition Updates Key Features:

• Window Defender file updates to scan for the latest viruses
• Defender is a free virus scanner from Microsoft that comes with versions of Windows
• Defender used to only scan for malware, now it scans for viruses
• Supports 32-bit and 64-bit operating systems

Windows Defender Definition Updates is the virus scanner update files to scan for the latest viruses using the Windows Defender package.