The situation is:

I have a banned xbox where I have been playing on for a couple of years.
Now I have an other xbox (not banned) and when I plug my hard drive in this console all the Game profile seem to been corrupt.

Now I was thinking:
If I ban the second xbox, will I be able to use the game profiles again without the need of uncrippling the hard drive?

What would be the point of this? Assuming you are using one box for offline and one for online.

I don't care about online. (it is a jtag console)
But all my profiles are corrupt on this new console.

So my question is:
Will the profiles be back available when I ban this new console?

Short Answer - NO.

The ban crippled the console - so it wont sign anything. The easiest method for your situation is just to fix the tag when you want to move it. Do a search in google and you can find the software you looking for. Very easy and quick to use.

Ok, thanks man.
Is what I wanted to know!

You can uncorrupt all your data so you can use it on your JTAG. You don't have to ban it. (Which, as a side note, wouldn't really affect you too much... but isn't it nice knowing it's not banned?)

Use CONSaver to batch uncorrupt your data. I did this when I migrated my profiles and saves to my JTAG and it worked like a charm.