I can see that this was discussed before but I don't get it.
I've tried it for the last 14hours and now it's time to go to bed.
I just hope I find a solution when I wake up again
It's an HP Pavilion 590 p0512ng with a 256MB SSD (M2.0)
I've also installed a 1TB Toshiba SATA drive
On my old PC I've used the SW boot-us but this seems not two work with windows 10 (used it with three windows 7 installations,).
I can install windows 10 on the SSD but once I c install a second OS on SATA drive it can't boot anymore.
The SATA drive is not visible in the BIOS/UEFI but during the installation it is.
How can can I install two windows 10 on this machine.? Is there a special boot loader I need to install after the first installation on SSD?
I want to have this config to ensure my OS is not infected when my wife downloads some crap
Thanks for help
I've tried it for the last 14hours and now it's time to go to bed.
I just hope I find a solution when I wake up again

It's an HP Pavilion 590 p0512ng with a 256MB SSD (M2.0)
I've also installed a 1TB Toshiba SATA drive
On my old PC I've used the SW boot-us but this seems not two work with windows 10 (used it with three windows 7 installations,).
I can install windows 10 on the SSD but once I c install a second OS on SATA drive it can't boot anymore.
The SATA drive is not visible in the BIOS/UEFI but during the installation it is.
How can can I install two windows 10 on this machine.? Is there a special boot loader I need to install after the first installation on SSD?
I want to have this config to ensure my OS is not infected when my wife downloads some crap

Thanks for help