On one of my researches, I've found this:
'Unfixable' Windows 7 exploit created by security experts
I thought it would be nice to share it. It's a bit old, though...
Another pointer, this exploit will only work with Windows 7 x64 version, so x86 w7 systems remain secure to this exploit (for now...).
More info at NVlabs.Vbootkit 2.0 currently only works on Windows 7 ( x64 edition ).
What I find interesting is the replies to the article. People laugh because physical access is required. In my mind that isnt something to laugh at. Its not difficult to get physical access to many computers.
"You're only smoke and mirrors..."