Not exactly a Win10 problem, but I had been using Win10TP on a separate partition. During the next to the last build I stopped getting the boot menu. I had gone back to Win8 as my default OS so my SP3 just booted to Win8 and I was just waiting for the final release. Well I upgraded my Win8 OS to Win10, but now I get a boot menu again, but the old Win10TP wont boot and goes to a recovery screen. I want to reformat that partition (the one with the Win10TP) and get rid of the boot menu too? I'm afraid if I just reformat that partition I'll still have to deal with a boot menu every time I start it up. How do I get rid of it?