So my desktop is about to be scrapped, had Crashplan running on that machine and have backed up my files, the issue I'm having and not sure if this is normal or whatnot but to unlink that machine I lose all my files that I've stored online?
When you adopt computer so that it takes over for another, a number of things take place behind the scenes:
The new computer is assigned the old computer's setting and ID. It becomes the other computer.
The old computer is deactivated. This means that it no longer backs up.
The files you already backed up from the old computer (and now residing on the new computer) are still in the backup archive. CrashPlan recognizes those files in the backup archive and knows not to back them up again.