Oups just little update about my above post : it does not hangs at 1% but just after having displayed the last 1 second to press keyboard to cancel the chkdsk before displaying the percents !
Also having the same issue on my windows 7 64 bits even if having all drivers up to date : chkdsk freezing when starting still when displaying 1% on my MSI X58 Platinum, i 875x cpu with 4 "raid 10" 250WD 10 000trs/min on c: & 2 raid 0 1TB on d:, does not depend on the disk & all disks are ok &...