Comment 1 for bug 1415181

I am not sure whether I have understood your request completely. QEMU can access raw partitions if the OS supports them. MS Windows supports physical partitions and calls them \\.\PhysicalDrive0, \\.\PhysicalDrive1 and so on. Admin rights are required to access these devices. Depending on your shell, the backslashes might need to be escaped, or you will have to write //./PhysicalDrive0.

Using raw partitions from QEMU can be really dangerous, so you should know what you are doing, overwise the result might be that your windows tablet no longer boots at all.