De-activate acrobat installation on crashed PC.
My hard disk crashed and I had a new harddisk installed. Now I re-installed Adobe Acrobat DC and tried to register again with my purchased serial number. This failed. I read the support suggestions that I need to de-activate the installation on the crashed hard drive before I can register the installation on the new hard drive.
The instructions to de-activate the from the account page does not work because the options 'activated devices' is not shown there.
How can I activate the new installation with the purchased serial number?
I purchased Adobe Acrobat standard XI in 2013.