Firstly, if you still have access to older computer, sign out of CC activation on that computer by going to any product>help>sign out. This will deactivate your activation on the previous PC.
Then go to Creative Cloud Website and download the applications directly or download CC Desktop and downlad applications via that.
If you do not have access to older PC and you are getting a message like "Activation limit reached", the follow the steps mentioned in this document:
Can you please explain on this forum how we go about changing computers if we no longer have access to the computer? I want to borrow one of my pc license to a work collegue (as he waits to get paid) but (just in case) can revoke it without access to his pc at any time and use it on my personal computers again? The link did not give me the answer i was looking for.