I have got a strange problem since i run seven 64 bit Rc ( didn't tried older version nor Rtm ). I think a got the same Pb with Vista 64 bits, but a it was more random.
When i start my computer from scratch, it boots and when i got the 4 colors of the windows logo that go together, it hangs.
then i reboot the comp , i got the message to run the troobleshooter or start windows manually.
I choose the second option, it boots normaly.
I dont have this problem if i put on standby , it wake up OK.
If i boot With F8 , in safe mode , the computer hang on the ClassPNP.sys.
So googled a bit, it seems to be a trouble caused by windows having pb with handling APIC or AHCI.
I dont know what to change .... moreover i dont use the integrated SATA. i use a 3 ware raid card ( see my profil ) . So ACHI is not pb ?
Some one has already got this bug ?
ps : sorry for grammar.