The background to my problem is that I managed to activate the on-board sound in the BIOS while fixing something else, which made something of a mess of my sound configuration. I disabled the on-board, removed all drivers relating to it that had installed themselves and (after a struggle) also managed to purge my system of things Creative audio using first the comprehensive instructions at the Creative "knowledge base", and then running driver cleaner pro. On a reboot, the system recognises the Audigy 2 ZS is there, and tries to install it but comes to a grinding halt about a fifth of the way in with;
“Cannot Install this Hardware. There was a problem installing this hardware: Multimedia Audio Controller. An error occurred during the installation of the device. The data is invalid”
A quick Google revealed this doesn't seem to be an uncommon problem, and the universal fix is to direct you to the registry through the chain HKEY_LOCAL_MACHINE, SYSTEM, CurrentControlSet, enum, PCI and then set the permissions on either all daughter keys, or just the ones regarding the device concerned to "full control". I have only one group set up, apparently, "Everyone". Anyway, that's what I did. The permissions are still there, Ive checked. According to everything I can find relating to this that should be the end of the problem, but it isn't. Still the same "the data is invalid" error on trying to install the soundcard.
Does anyone have any ideas? Any help appreciated.