After it fails it sends me to this link: http://www.manageengine.com/products/service-desk/upgradefailure.html

 

I'm able to start my ServiceDesk Plus install just fine and it still works as normal... 

 

I can't see any reason why the update won't install.  I'm running version 8.0.0 Build 8006 trying to update to 8007.

 

I can attach my support file if needed, I did a search on the forums and haven't seen others having this issue...