Oh, the 4GB model? Or the 2GB model? It's android, right? You can install windows via third-party apps but I wouldn't advise it. Just head over to settings, then tap on 'Display'. Go to brightness and select auto dimming (or local dimming on some devices). This will save your eyes, like a lot. You can also enable 'Night Light' (on a Windows) and 'Eye Protection' (on a Mac) to save your optical sensors (lmao eyes) from straining. This will save your day and even your health.
Hope this is helpful =)
(I'm the nerdiest techie on this thread lmao)