Installing Devices Stuck at 98%

Question

Good morning!
I've recently taken control of my company's MDT server and we're running into issues with certain Windows 7 x64 deployments not finishing on our HP Z420's. We know the .wim is fine because we don't always have problems installing, all HP Z400's finish successfully
and a few 420s too.
Essentially the workstation is imaged and begins the first reboot within the task sequence. After that the BDD.log stops updating, and somewhere between 3% and 98% it will hang. The white light splash screen continues to animate but never finishes. After
booting into a PE we can see all the Windows files on D: but is never moved to C:.
Unfortunately I'm unable to upload the BDD.log, not that there are any errors after comparing line-by-line a successful 420 image vs an unsuccessful one. So far I've checked the network end to end, ensured drivers are in the deployment, and flipped dozens
of settings in the BIOS in hopes of getting them to work as they're supposed to.
Any assistance would be most appreciated, I'm still learning the toolkit but we'd like to get things up and running sooner than later.
Thank you!!
DD

Answer 1

Figured it out by myself.
Turns out one of the last devices to be installed is the USB optical mouse which would sit there forever trying to complete. No errors, and never completes.
If anybody runs into the same type of thing check %windowsdir%\inf\setupapi.dev.log
For me, the last lines were along the lines of <     dvi: Set selected driver complete.
ndv: Driver selected, no performing install...
ndv: Waiting for previous device install to complete.
Unsure of why this happens but we've got a workaround where the affected mice types (from HP) are unplugged until the Windows 7 login screen comes up.
dd