I recently ran across some problems when trying to update System Center Service Manager SP1 with Update Rollup 4 (UR4) (http://www.microsoft.com/en-us/download/details.aspx?id=40836). Here is the error: “Microsoft System Center 2012 Service Pack 1 Service M has stopped working“.
There is a Temp folder on management servers with SCSM setup logs like in the screenshot.
The UR seems to get hung up on something in one of these logs. To get past this try the following:
From the management server/s that the UR install failed on go into C:\Users\YOUR USERNAME OR USER SM WAS INSTALLED UNDER\AppData\Local\ and rename the Temp folder to something like Old-Temp. Reboot and then run the UR4 install again. Now the UR4 should go through without any problems.