Error: Access denied while performing request. Please check that the account assigned to the service has sufficient rights ...

Error: Access denied while performing request. Please check
that the account assigned to the service has sufficient rights
to perform the operation. To do so, check the service settings in the Control Panel | Services applet and
the Default Properties in the Distributed COM Configuration (dcomcnfg.exe located in the System32 folder). Adjust the
authentication level to suit your security needs. If the Default Authentication Level is set to None, requests from the service will always complete.