I'm trying to get Vista to load. When I try to load normally with boot logging enabled, the first driver it has trouble with is NDProxy.sys. It says loaded and then it says did not load (seems to try twice). I copied a more recently updated driver from a working Vista machine (the old one was 2008--new one June 2010) and deleted the old one. (I saved a copy to removable drive.) The new file is about 50% bigger. Now when I load normally the boot log shows that the driver again tries loading twice, but fails both times. With boot logging enabled on the donor machine there is no problem loading it. Am I missing a step? Does something need to be changed in the registry? I searched all occurances of NDProxy in the registry and recorded the details. Nothing changed after reboot. The entries in the donor machine's registry were also very similar. I doubt that this driver is preventing Vista from loading, but I want to get the hang of it before attempting to replace any others. Note: Safe mode won't load either. Only command prompt is available (or Linux live DVD--no bootable Vista disc).