While it is not possible to directly download Windows Defender to install, we can instead make use of Microsoft Security Essentials which is available as a slightly cut down version for older versions of Windows, such as Windows 7, in order to help protect against viruses, spyware and other malicious software. Microsoft Security Essentials provides most of the protection methods that Windows Defender does with the exception of rootkit and bootkit protections.
It is important to note that Microsoft Security Essentials is designed to provide a basic level of free protection for home or small business PCs rather than important server infrastructure.
Despite this, users with a very small amount of Windows server installations have been looking for ways to install Windows Defender in order to provide at least a basic level of security. SCEP does require paid licensing to work, so for a very small environment Microsoft Security Essentials can at least provide a basic level of security protection. In order to resolve this, run command prompt as administrator and enter the folder where the mseinstall.
Run the mseinstall. Essentially we are just going to open Notepad and create a. If we check the History tab of Microsoft Security Essentials we can then see the test file listed as a quarantined item, confirming that it is working correctly as intended in Windows Server R2.
Although not officially supported, we have successfully installed Microsoft Security Essentials a cut down Windows Defender in Windows Server R2 and confirmed that it is working correctly and detecting security threats. Microsoft has published a knowledgebase article for how to manually remove Microsoft Security Essentials:. The following is the uninstall part of what MS Support provided when responding to an inquiry where uninstalling was a problem and our normally recommended procedures were not working.
This tool is designed to fix un-installation issues like, MSE registry issues, removes remnants of Microsoft Security Essentials from your computer. Repeat the steps from b to f and, this time select Microsoft Antimalware from list to uninstall and click Next. Further down is a set of commands which will be executed automatically in the background.
You need to save this file as "mseremoval. Uninstall and removal of Microsoft Security Essentials files and folders using advanced method. Before proceeding, make sure that you have first attempted to uninstall Microsoft Security Essentials via Control Panel - Programs. In the File Name section, enter the name as " mseremoval.
Right click on mseremoval. A command prompt window will open, the necessary steps will be performed and then it will pause at the end. You can see and copy the results from there. When you depress any key, the command prompt window will close. Once this window closes you can delete the mseremoval. Alternate manual removal method 1 that you can try :. Save it to your Desktop. Type: mseinstall.
After the uninstall you can now attempt installation. It would be best that you restart your system first after the uninstall. Alternate manual removal method 2 that you can try :. Note: Editing the registry incorrectly can cause your system to become unusable. Proceed with caution. Regedit - don't press enter. Right click regedit. Right click "Microsoft Security Essentials" in the left hand pane and select Delete. In the results list above, under Programs, right click Command.
Special thanks to the following contributors to this article:. See Also:. How do I uninstall antivirus or antispyware programs? I can't install Microsoft Security Essentials. Getting started with Microsoft Security Essentials. Electronic Workplace is an IT service provider. If your looking for a free anti virus for the server, there is an open source called ClamWin. It doesn't do real time scanning but at least you can have a regular scheduled scans and updates set.
Installation will run and update on windows server R2. Spiceworks will not recognize that it is installed though probably due to it not being a supported OS for MSE. Spiceworks will put these in a classification of "AntiVirus Status Unknown". Even though it is updated and running. To continue this discussion, please ask a new question. Get answers from your peers along with millions of IT pros who visit Spiceworks.
Best Answer. John Oct 13, at UTC.
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