Problem:
After updating to windows 7 and redeploying my pxe reps I found that HII is not working for my test systems. I dug deeper and found that the hii client is not finding any matching hardware devices. Nothing has change in my driver library driver wise before the upgrade and now. I went into the console and I was able to assign the driver to the machine since this machine had a sp1 client on it before I had began my testing, but that didn't help either.
Cause:
This can be caused if there is a lddriverstore in your image file.
Resolution:
Check the image files c:\windows\lddriversstore. Added a line before the HII task in the provisioning task to delete that directory.