can't add new hardward

I'm having a similiar but not exact problem. I've successfully installed a
hp printer but I am getting a pop-up window saying "Cannot Install This
Hardware - There was an error installing this hardware - An error occurred
during the installation of this device - The system cannot find the file
specified"

Anyone know what is going on?

"ptt" wrote:

When i run new hardware wizard. This message below show on popup.

"You can install only one device at a time. Another device installation is
underway, when it is finished you can try this wizard again."