Manually download the latest updates, This update up to 7 days.
Microsoft Security Essentials
Windows Defender in Windows 10, 8.1
Windows Defender in Windows 7
If you need to get the latest updates available, you can download and install them from here.
For all Microsoft security software, you will need to download the antimalware and antispyware updates.
Antimalware and antispyware updates
For antimalware and antispyware, the latest definitions are here.
To download these updates:
Check whether your version of Windows is 32-bit or 64-bit.
In the table below, right-click on the link that will work for your version of Windows and choose Save target as... or Save link as...
Save the file to your Desktop.
When the file has finished downloading, go to your Desktop and double-click the file (it will be called mpam-fe.exe, mpas-fe.exe, or mpam-feX64.exe).
Follow the prompts to install the update.
You can find out more about our products on the Microsoft security software page.
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