Using the charmap executable in the system32 folder I made an uncrackable password by copying and pasting untypable characters
like □ and ♪ and ⅞. I also tested it using some password crackers.
While, for cracking stuff, I used Ophcrack, a free Linux distribution, and Cain & Abel.
Plus, I found that ctrl + bksp types a strange character, but only sometimes.