I had the same problem. To resolve do as follows:

a) stop all sql services from service manager.

b) change the logon for the following services from a named user account to local system account and stop the services.

SQL Server, SQL AGENT, SQL Server Browser,SQL Server VSS writer and SQL Server Reporting(if installed).

c) After changing, start the services again(in local system account logon)

d) Once all services start successfully, change the logon account back to the named account which was in use previously. Either restart the machine or stop and start the individual services from service manager.