I asked in Toshiba Community about RECOVERY DVD'S , and say that the HDD will be restored completly, citing "includes all the hidden partitions and the master boot record. - all the bytes on the disk are restored", then if this is true, all the HDD must be erased to create 2 partitions (1 hidden and C:), this meaning that original HDDRECOVERY files have to stay in any place before this happen. Thx