Windows Defender Definition Updates January 26, 2023

Windows Defender Definition Updates January 26, 2023

Reviewed by Pete Daniel on 5 Feb 2014

"Latest Windows Defender definition updates."

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.

  • Size

    111.28 MB
  • License

  • OS

  • Updated

    27 Jan 2023
  • Downloads

    43,990 (137 last week)

Top user review

64-bit is where?
by roulen on 30 Jul 2021
Rating: (Poor) for version July 28, 2021

64-bit is where?
64-bit is where?
64-bit is where?
Comments (1)
Comment on the review above.
kshu on 3 Aug 2021
Developer Link 2 is for x64 win 8.1 / 10
Developer Link 4 is for x64 win Vista / 7

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Antivirus information

Download3K has downloaded and tested Windows Defender Definition Updates on 27 Jan 2023 with some of Today's best antivirus engines and you can find below, for your convenience, the scan results:
  • Avast:

  • Avira:

  • Kaspersky:

  • McAfee:

  • NOD32:

Windows Defender Definition Updates Antivirus Report
User rating
4.5/5 (106 votes)
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