I don't know if Windows 11 supports 7.1 surround sound. But I know that the Linux operating system does. Well, I'm not telling you to change your operating system, especially if you say you have important data stored on your computer. I'm just saying it's possible, I just recently switched to Linux, and I didn't want to do it because I thought it would be a mistake. I just needed a Linux control panel so I could manage my sites. But I was wrong, in many ways this operating system is even better than Windows. But there are disadvantages and pluses everywhere.