ERROR TYPE: "cannot start service spusercodev4 on computer sharepoint 2010"

When i trying to create a sandboxed solution for SharePoint2010 in Visual Studio 2010 and try to deploy the solution, i got the error "Error occurred in deployment step ‘Retract Solution’: Cannot start service SPUserCodeV4 on computer".

In Order To fix this error, do like this
go to Central Administration -> System Settings -> Manage services on server and start service "Microsoft SharePoint Foundation User Code Service".

Now try to deploy sandbox solution this time i didn't got any error.