I am running Windows7 and I've installed another HDD on which I've installed Windows10. I had to disconnect the HDD with W7 on it as the W10 installer just wanted to upgrade my W7. this means that MS config in W7 just sees W7. I tried easyBCD but it also just sees the W7 installation and when I point to the W10 drive it just adds another menu after the startup in the bios. I've searched for a solution but none of them seem to work.
Is there a way for a simple choice to boot between the systems without having to keep waiting at startup with F8 pressed. Another irksome problem has arisen where bios? keeps wanting to check the 3rd HDD for problems even though I did let it check once.