Native Instruments can...

[Depone]

Try this - It sorts out a whole host of crashing problems on a mac -

Goto Disk Utility (its in your utilities folder) then click on your hard drive, and select repair permissions. Once its done, Shut down the computer (dont restart) you will need to leave it for a good 5 seconds for it to flush its cache.
Try again.

Ps, did you have a non legit version installed before??

yea, i have had a pirated version before but i knew that having that would might f**k up the download so i tried deleting everything that had the name "massive" init on my mac but i don't think it helped or i may have missed sometin

As soon as I read your post that's the exact thing I was thinking. Some of the Massive cracks have reaped havok on people's system's especialy when they try and go with a legal copy.

If all else fails, just straight up tell them your computer had a cracked version on it before. they might have some ideas of how to combat that (since i'm sure they have seen it a tone before).

Agreed; installing my legit copy of Massive, the Control Centre still detected that in my wayward youth (about 5yrs ago to be precise) I'd had a cracked copy of Kontakt and Battery2 installed, long since deleted and I'd thought stripped from my machine but not, still evidence of them being on there.

Library->prefrences?
Username->Library->prefrences???

[wub]

Agreed; installing my legit copy of Massive, the Control Centre still detected that in my wayward youth (about 5yrs ago to be precise) I'd had a cracked copy of Kontakt and Battery2 installed, long since deleted and I'd thought stripped from my machine but not, still evidence of them being on there.

Library->prefrences?
Username->Library->prefrences???

Sounds good. TBH, I'd just never thought that anything other than Add/Remove programs was ever needed. Will give that a try at lunch, cheers

[trench]

If you’re on a PC you can check in your registry editor (RUN: regedit). Go to Programs\Native Instruments and delete the massive folder (if one is still there). This is after you have uninstalled the cracked version though... and before you install the legal one.

[somatix]

try this had, the same problem.
First update your flash UB plugin to the latest version (this is why it crashes all the time).
Then open the service centre in stand alone and go through the activation.