I've used ThinkVantage Secure Data Disposal tool aiming to erase a HDD 7 times but I stopped it once i've started (in 2 secs). The HDD is Win7 OS with Bitlocker encrypted. When I started the laptop again, no OS is found. I got the 48-digit Bitlocker recovery key on hand. May i ask how I can recover the partitions or data from the drive? Anyway available recovery software in the market that will prompt me to enter the recovery password? Thanks.