You have already registered your serial number. We assume that you are trying to register again, because you got lost somewhere in the download and activation process of SilverFast.
What is it you wanted to do?
1. Download or update SilverFast:
In order to download SilverFast, you can use this link: https://www.silverfast.com/get_update/en.html
2. Upgrade SilverFast
Please check our online shop: https://www.silverfast.com/buyonline/en.html
3. Get a SilverFast 8 serial number that works without CD:
You can exchange your SilverFast serial number that came with a scanner on a CD or DVD for one that works without the disc by following these instructions: Activate SilverFast 8 without CD/DVD
If you have asked for the exchange already and didn't get our email with the new serial number, you can use the link to have the mail with the serial number sent to you again. Please check your inbox and spam folder.
4. You bought the license second hand and the previous owner is still registered?
SilverFast 9 users can transfer a license to their MySilverFast account:
How do I transfer a SilverFast 9 license?
As a SilverFast 8 user you need to open a ticket to contact us: https://helpcenter.silverfast.com/hc/fr.
5. Something else
If none of this helps, please check our help center for an answer or open a ticket to get in touch with us: https://helpcenter.silverfast.com/hc/en