I ran into the same issue with XP systems, linked clones and a persistent drive. When using a persistent drive a secondary drive is being created and is trying to install the LSI driver. I called support and they walked me through the process of download the correct driver and after creating a new snapshot and recomposing the systems I wasn't prompt for admin rights.

What I do now when building images or better yet on your template. I have a driver folder on my local system called LSI with the correct drivers and then I copy that folder to sys32 on my VM. I then go to device manager and update the LSI driver and point it to the LSI folder in sys32 folder. I reboot system and then do the rest of my configuration.

This process has worked really good for me.