M$ recommends to uninstall an update to win7, KB2823324, because it conflicts with some programs and can cause the computer to stop startup or going into a loop of restart. or not to install it if not yet uninstalled. http://support.microsoft.com/kb/2839011/en-ushttp://blogs.technet.com/b/msrc/archive/2013/04/11/kb2839011-released-to-address-security-bulletin-update-issue.aspxYou can remove the update with DISM: Get package names: dism /image:C:\ /get-packages Search the results for security update 2823324. Copy the package name, and paste it as shown: dism /image:C:\ /remove-package /PackageName:Package_for_KB2823324~31bf3856ad364e35~x86~~6.1.1.1