I have a Mac Pro 1,1 (dual-core 3.0 GHz Xeons, 32 GB RAM, ATI Radeon HD 4870 512 MB GPU, two or three hard drives). It's on El Capitan but I have it dual booting via Boot Camp with Windows 10. However, when the sleep function does not seem to work on Windows: at least, when the computer wakes from sleep, the computer will freeze, occasionally BSoD, and reboots…or tries to reboot. However, when it reboots (or if I issue a reboot command from either Mac or Windows), it will power off, and then the fans will turn on really high and it sounds like it's continually starting, turning off, and starting, without ever actually booting up to any screen. 1. Is there a way to make it sleep properly on Windows 10? 2. Is there a way to fix the reboot issue?