Sometimes it is not possible to start the Microsoft Analysis Services service. When you try to manually start it under Services you get the following error:
The problem most often occurs after a re-install of SQL Server
The problem is know by Microsoft (see Link for further details) and the workaround is to clear the application log in the event view
1.Open Event Viewer
2. Locate the application log and select 'Clear Log'
You can the select save if you want to save the log entries before clearing the log or just clear
Go back to Services and start the Microsoft Analysis Services service
Start the service by right clicking on the service and select 'Start'