In order to resolve this, run command prompt as administrator and enter the folder where the mseinstall.exe file is located. Windows Program Compatibility mode is not supported by this program. Microsoft Security Essentials cannot be installed on your operating system. Within the compatibility tab tick “Run this program in compatibility mode for:” under Compatibility Mode and select Windows 7 from the drop down box, as shown.ĥ - If you were to run the mseinstall.exe file at this point, you would receive a different error as shown below: Your version of the Windows operating system is not supported by this program.ģ - To get around this error message, right click the mseinstall.exe file and select properties.Ĥ - From the properties window, select the compatibility tab. Select the language of your choice and either 32-bit or 64-bit depending on the architecture your server operating system is using.Ģ – Save the mseinstall.exe file somewhere locally on the server, do not simply run it as by default the installation will fail with the following error: Microsoft Security Essentials cannot be installed on your operating system. Running more than one antivirus program at the same time can potentially cause conflicts that affect PC performance.1 – Firstly you’ll want to download Microsoft Security Essentials onto your Windows server. Microsoft Security Essentials runs quietly and efficiently in the background so you’re free to use your Windows-based PC the way you want-without interruptions or long computer wait times.īefore installing Microsoft Security Essentials, we recommend that you uninstall other antivirus software already running on your PC.

Microsoft Security Essentials is a free download from Microsoft that is simple to install, easy to use, and always kept up-to-date so you can be assured your PC is protected by the latest technology.

Mseinstall 64 bit windows 7