I need to dual boot my 5,1 cMP with 10.15 and 10.13 so I can make use of my GTX 1080. I have tried going through the App Store and when I attempt to download, I get one of two error messages: I am told that there was a network problem (there isn't a network problem) or that I cannot download as I have a newer version of OSX. Strangely, when I look online, I cannot find any images of 10.13.
Also, as an aside, does anyone know if it is possible to partition an existing NVMe drive (that has 10.15 on it) through Windows?
Thanks.
Also, as an aside, does anyone know if it is possible to partition an existing NVMe drive (that has 10.15 on it) through Windows?
Thanks.
