How to get rid of out of use appliances from ADE so I can authorise my new appliance?

[bmb912]

My A.D.E will n ot authorise my new Kobo e-reader.  When I try it says there are too many authorisations already.  How do I get rid of (unauthorise) out of use appliances ie my two previous and now out of date kobo e-readers from ADE so I can authorise my new appliance?

[MichaelKazlow]

Moved to Adobe Digital Editions

[sjpt · Accepted solution]

You need to talk with Adobe service.

They will remove ALL your registrations, and you will need to reregister the ones you want.

For some reason, Adobe doesn't have any sensible online system for viewing/editing registrations.

http://www.adobe.com/support/digitaleditions/supportinfo/

and open a Chat.

Infor from FAQ at

http://www.adobe.com/uk/products/digital-editions/faq.html

See 'What is the maximum number of computers and devices that I can activate?'

which forwards you to

http://helpx.adobe.com/digital-editions.html

which eventually gets you ('contact support' to

http://www.adobe.com/support/digitaleditions/supportinfo/