Use bitlocker or diskcryptor with 30 characters (combintion of digits, lower case, upper case, space and special characters).
But I don't know whether a government agent or NASA could break it up or not.
~Rude Boy
Yeah I have heard about Bitlocker. But not sure how much safe is it,incase someone from the security or government agencies get the data
Some people already can hack Bitlocer, it's no longer effective
Only truecrypt with strong password is the solution