If you enter your serial number (Kontakt, UVI, etc.), and get an error you will want to do some quick troubleshooting.
Please note that Kontakt serials can be actiavted on multiple machines using a single NI account. UVI serials can be actiavted to a single device, such as an iLok key or your computer.
If it seems that you have been sold a duplicate serial, please contact Customer Service with the following info: