ConfigMgr 2012 SP1: KB2801987 to fix MicrosoftPolicyPlatformSetup.msi Authenticode Signature

You should apply this hotfix as soon as possible to your Configuration Manager 2012 SP1 environments;

This is a server-side install only and you do not need to push anything out to the clients. The patch will update the existing MicrosoftPolicyPlatformSetup.msi in the client installation files folder.

Related to an earlier post of mine about having patience, you should VERY MUCH be patient after installing this hotfix as it will trigger the re-installation of most, if not all, of the server site components in the background after the hotfix install has completed.  Use CMTrace to monitor your sitecomp.log and give it plenty of time to settle down before firing up the ConfigMgr console to do ‘stuff’.  My server took about 30 minutes to complete the whole background tasks and also you should check that your MP has been re-installed correctly by monitoring the MPSetup.log and the mpMSI.log.  My MPSetup.log indicated a 3010 exit code after re-installation which means a reboot is required and you would be wise to do this immediately after the sitecomp.log has settled.