Maybe to check in MAME if bug also exists and if it works, how it's done.
As explained in the ticket I have disabled "Hybrid boot and shutdown mode" which is just the same thing. Under Windows 8, the checkbox option is named "Turn on fast startup (recommanded)".
system favorite volumes not working on Windows 8
Here is the reason : O2EM generate pseudo-random 1-bit noise using C rand()%2 calls,...