Hi,  I had the same problem. Read all of the above, Tried all of the fixes suggested, but the problem still remained. Just before installation completes, I had the same message, i.e: "Error getting cert filename (property: Custom Action Data) from MSI" As I find this a very useful tool, I was determined to get it back, so.....  I looked in my PROGRAM directory  for any sign of Dell Support Center, and found there a sub-directory for 'Dell Support Center'. There were two items in it, neither an uninstall program. I just deleted the whole sub-directory 'Dell Support Center', thinking to allow the installation program to start afresh, then removed the downloaded 'aulauncher' (the installation app for Dell Support Center),  then rebooted the pc. Then I followed the link to download Dell Support Center from DELL website again, downloaded it, ran it, REBOOTED, and all is now ok with my world. :-) Hope this helps.      
I keep getting a message on my screen saying that Dell Support Centre has stopped working and a solution is being sought. I think maybe something has happened to this software but I am not knowledgable enough to be able to work it out for myself. I have tried to start Dell Support centre from the Start Menu.  The logo appears but nothing else happens. What do I have to do to get it working again?
Dell Support Centre has stopped working - HELP!