Windows 10 on 2009 MacBook Pro (15-inch)

Hey guys!

I've decided to install windows 10 on my old macbook pro. I've successfully installed it. I reached the desktop, installed bootcamp drivers (had some issues, but compatibility mode worked). I then noticed that the sleep option in the power menu didn't show up. I ran powercfg /a (or something, i dont remember) and then saw that the graphics card was causing the issues. I installed the latest driver from Nvidia, and it bootlooped. I disabled the 9400M in safe mode, and it works. Any thoughts? I honestly just want sleep mode, not 3d acceleration.