instant check out is great BUT is it possible to delete the possibility 'account registration'?

[lefebre]

hello

i find the possibility instant check out very interesting
so i want to delete the other possibility so 'account registration'
because i have had lots of problems of too many accounts by same users over and over again with large database cleanings necessary as result

does anyone knows if you can change this somewhere in backend of prestashop 1.4 please?
i only come across the possibility to add the 'instant check out'
can i somewhere and somehow delete the 'customer account registration'???


thx a lot for your help