Storage & Scanbot: Why does Scanbot use so much Storage even though I deleted all of my documents?
A big amount of storage is taken up by the OCR-Language packs.
To get rid of those files as well, a simple reinstallation of Scanbot will remove them.
(ATTENTION: Please don't do this if you haven't uploaded all your important documents to a Cloud Service yet! This will delete all locally stored documents and there is no way to restore them again!)