Here`s what OCZ Guys Advised: if it's possible, please try following steps: - Boot with Parted-Magic and Secure-Erase the Drive - Shutdown Computer - Reboot with Parted-Magic and create a new NTFS Partition with the internal Partition Editor - Shutdown and unplug all other Harddrives - Retry the Windows 8 installation without reformating the Drive Believe me or not IT FINALLY WORKED ;D Though I got another problem When I try install x64 version of either 8 CP or RTM i get blue screen at the very beginning of instalation process WEIRD ;/ Looks like WIn8 will face the fate of Vista. I`ll wait for WIN9