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The Parallel port driver service failed to start

I did a P2V (Physical to Virtual) migration of an SBS 2003 server. It was running on physical hardware but now it is running in Hyper-V. I removed the device drivers for things that were no longer connected to the SBS; this is standard practice in P2V migrations.

I started getting error 7000 logged in the event viewer, complaining that the Parallel port driver service failed to start.

Event Type:    Error
Event Source:    Service Control Manager
Event Category:    None
Event ID:    7000
The Parallel port driver service failed to start due to the following error:
The service cannot be started, either because it is disabled or because it
has no enabled devices associated with it.

For more information, see Help and Support Center at

How to fix it

The parallel port has already been removed from the device manager, and there are no related services that I can see.The only fix is to open up Registry Editor (regedit) and change the start value from 3 to 4, as shown below:

Windows Registry Editor Version 5.00


As always, be careful in the registry!