If you have to run Windows 10 offline/disconnected from the Internet, or you have several PCs and want to save bandwidth, you might want to download the malware definition/signature updates for Windows Defender offline so you can update multiple PCs at once or update it without internet connectivity. In this article, we will see where to get these updates to install them in Windows 10 without downloading them on every PC or connecting to the internet.
Having offline Defender signatures is also useful for those who disabled Windows Update in Windows 10. Microsoft provides a page where the user can download the full signature update. It is redistributed in EXE file format. To install it and update your Windows Defender virus detection signatures, you just need to run it like any other app.
Here is where you can download them.
For Windows 10 users, if you are on the way updating the Windows Defender, head to Microsoft Windows Defender Definitions download. Upon entering this site, you can see what definition and how many definitions for Antimalware and Antivirus you can download for Windows Defender.
Update For Windows 10
- Point your browser to the following page:
Security Definitions Download - Scroll down to the title AntiMalware and antispyware updates
- Select 32-bit or 64-bit update package matching your operating system. See how to determine if you are running 32-bit Windows or 64-bit.
Windows Vista or Windows 7 Right-click the file, and then click Run As Administrator. If you are prompted for an administrator password or for confirmation, type the password, or click Continue. When the definition update file runs, a file extraction dialog box appears. The dialog box indicates that the definition update is installing. Run scripts disable-windows-defender.ps1. Reboot the computer (either usual way or via the PS Restart-Computer) Run scripts disable-windows-defender.ps1 one more time. Reboot the computer again. This is not the easiest way, but very reliable and resilient.
Download Disable Definition Update For Windows Defender Kb2267602
As of this writing, the following download links were available for Windows 10 and Windows 8:
- 32-bit
- 64-bit
- ARM
In case, you don't find Windows Defender of any use, you might be interested in reading the following article: Disable or enable Windows Defender in Windows 10. It will help you to turn it off completely.