Older MSE will hinder Win 7 SP1 system installation

        When the major version of the Windows operating system is upgraded, there will be problems that are not compatible with the installed security scheme. Microsoft acknowledges that when installing the SP1 service pack for Windows 7 and Windows Server 2008 R2, it is not only Microsoft's free anti-virus software MSE, other security solutions. The solution also hinders the installation process, including Microsoft Forefront ClIEnt Security and Microsoft Forefront Endpoint Protection.

Affected users will receive an error message, the software installed on the computer can not be compatible with SP, "MSE - your version will prevent the SP from successfully installed." MSE and other Microsoft killing software will call mpfilter.sys during installation, while Windows 7 and Windows Server 2008 R2 will detect mpfilter.sys when SP1 is installed. If the version is lower than 2.1.6804.0, SP1 cannot be installed.

other words, "if you install version of MSE is lower than 1.0.1963.0, you will need to upgrade version or install updates via Update (to continue the installation SP1)."

MSE is Microsoft The free anti-virus software needs to pass Windows genuine verification, support 32-bit XP, 32-bit and 64-bit Vista/Win7, the latest version is 2.1, you need to be able to log in to the official download
page.