I had forgotten about this post, anyway, do not use that hex sequence. disk part is really the only way to fix this sort of problem. I did some tests of the third line (not sure if it's the same for all drives), but for me, it referred to the size of the drive, so you can manipulate how much space is actually shown. this won't increase or decrease the actual space, and I'm sure changing it can cause major problems. this is originally done at the factory. disk part will correct it if it's corrupted, but it won't be the same hex sequence.