I tried out Win-10 on multiple PCs here. I really didn't like it at all.
I ended up keeping it on a Dell Laptop (i7 CPU, 8GB RAM, 480GB SSD) and went back to Win-7 with everything else.
All was good for a month and a half and then the Dell crashed. It crashed hard, and it was lost. There was no bringing the OS back, even calling Microsoft didn't help.
Then, I tried a reinstall of Win-10 and it wouldn't work. Installing Win-7 wouldn't happen either. Linux?...no.
Nothing could detect the drive anymore.
(insert lots of time here researching and trying out solutions that didn't work)
I finally used Acronis True Image to clone another blank drive to it and that reset it. I installed Win-7 onto it and I haven't looked back.
CPU: i7-4790K CPU Cooler: NZXT Kraken X40 with Four Noctua PWM fans. MOBO: Gigabyte Z97X Gaming-3. RAM: 32GB DDR3-2400 GSKill (four 8GB). GPU: GTX-980Ti(times two) in SLI. SSD: Two 480GB Kingston HyperX Savage. DVD Burner: Plextor PX-L890SA. HDD: WD 4TB 7200RPM 64MB Cache. PSU: Corsair 1000W Gold. Case: NZXT Source 530 W/All Noctua (120mm & 140mm) fans.
Screen: 4K 28" ACER
I7-6850K, 64GB Ram, Kingston 480GB SSD, 500GB M.2 Drive
i7-6800K 64GB Ram, Kingston 480GB SSD, 500GB M.2 Drive