Sorry to hear about the recent issues you have been experiencing.
Here is a guide on registering Studio One:
http://support.presonus.com/hc/en-us/articles/210049883--2a-Studio-One-3-Register-Software-Purchase-and-Download-Installer
Studio One 3 is a different version, so to upgrade on your computer, you have to download Studio One 3 from My.Presonus.com
1. To Studio One 3, please use Step 2C from this guide:
http://support.presonus.com/hc/en-us/sections/201961663-Getting-Started - Start with the article: [2c] Studio One 3 : Software Install Studio One 3 (PC)
2. Then activate Studio One using Step 3 from
http://support.presonus.com/hc/en-us/sections/201961663-Getting-Started - [3] Studio One 3 : Software Activation (Online Computer)
3. Install Studio One Sound Sets using Step 5 from
http://support.presonus.com/hc/en-us/sections/201961663-Getting-Started - [5] Studio One 3 : Installing Additional Content [PreSonus Sound Sets]
If you are still having an issue, please submit a ticket to technical support.
