Running SBS2011 and Exchange has stopped working.
The problem appears to be related to Update rollup 7v2 for exchange server 2010 service pack 1
It has shown as installed but when i check for updates it wishes to install again and takes over an hour and the last time it failed. with error code 80070643
Which might have something to do with .net framework but unsure how to resolve.
When i goto exchange management i can not go onto the on-premises bit. I get initialization fail.
Any pointers? owa dosen't work either which i would expect