How to change Visual Studio 2015 License Key?

I am no longer allowed to use my current license of Visual Studio 2015 pro and need to change it for a new one. Is there any simple way to change license key?

Thanks in advance

Anyway, I found working solution under VS2012 thread, so this is just a repost from How to change Visual Studio 2012,2013 or 2015 License Key?

For those who will need to remove product key from Visual Studio 2015:

• Remove registry key HKCR\Licenses\4D8CFBCB-2F6A-4AD2-BABF-10E28F6F2C8F

• Repair Visual Studio installation:

  1. Settings > Apps > Installed apps > Visual Studio 2015 > ... menu > Modify
  2. That opens the Visual Studio Installer, but to the wrong page. Click the x in the top right to close the popup, and you'll see all of your Visual Studio installs and they have option to repair.

• Your Visual Studio should no longer have a license reported in Help > About Visual Studio > License status (but opening VS to check will activate a trial license).