Hello,
Is it possible to install and use Scrivener on a usb flash-driver ?
Thanks.
This is not supported. One day, we would like to produce a portable version of Scrivener, but for the moment this configuration is not recommended.
I was going to quote a discussion thread from a few months ago, which contains a discussion of the reasons, but I see that it was you started that thread so I expect you have read it already! 
[url]https://forum.literatureandlatte.com/t/scrivener-on-usb/15474/9]
Astrid