The result of not have the settings properly configured are the blurry text you will find all over the place in Windows 10. By default, your virtual machine app, Parallels, does not enable retina scaling. One of the issues that is distinct for Mac owners are the high-resolution (retina) display sometimes doesn’t actually provide the best user experience when running Windows 10. Running Windows 10 on a Mac has ever been easier, faster and better performing with Parallels for Mac.