Sorry it didn’t help.
Which version of Windows are you running? Did you also update it fully?
There are a couple important updates that need to be installed in order to solve the CLR20r3 error, but frankly can’t remember the exact KB numbers.
[EDIT: Perhaps these links could help? http://www.sevenforums.com/software/323079-program-has-stopped-working-problem-event-name-clr20r3.html and System Center Service Manager SP1 Update Rollup 2 error]