how cam i deactive acrobat 8 pro on a crashed PC when adobe web site does not recognize my email address used for registration?
Don't bother... Acrobat 8 is a dead program
The CS2-CS3-CS4 activation servers have been removed from service
-So even if you have a disc or saved download, CS2-CS3-CS4 are completely dead
-Adobe also no longer supplies the special non-activation version of CS2-CS3-CS4
deactive acrobat 8
in following steps
Can't hurt to try this but there's a strong likelihood that this is a redundant step since the activation servers no longer exist.