It should be installed on your computer already. type 'disk cleanup' in the taskbar and it should open.

Also, I don't see any download links at all on that page. Can you post a screenshot?

Wave Browser is not a safe program to install/use/download. I don't know where you got it but if it's installed on your PC follow these instructions:

https://blog.malwarebytes.com/detect...optional-wave/