Yes it was Windows 10. Since I didn't have a SSD in my old build, it should be on the HDD right? (I can't stress how limited my knowledge, sorry)
Would I need a big SSD if I only use that for the OS and keep all the rest on my HDD? I quickly goodled and I see a few 256gb SSD under R900, but I have no idea if that is good or not. If push comes to shove, I can add an additional grand if needed, will just have to stay sober for the month lol. Edit: (Last part is just a joke, I don't even drink close to a grand a month)
Win10 would be on the HDD but it might not be transferrable to the new hardware. Don't worry I know a few 'tricks'.
You wanna try and keep the OS, frequently used apps (like office) and regular games on the SSD, rest of the stuff can go on the HDD. If you can get an SSD, you'll never wanna touch a pc without one ever again in your life. RDR2 is about 120GB in size