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How to Install & Activate Windows 10 & Windows 7 Dual Boot?
I've been experimenting with an old 2004 PC. I originally bought a cheap Windows 7 Ultimate licence then upgraded it to Windows 10 32 bit FCU. The 64 bit version of Windows 10 won't install on my old CPU but Windows 7 64 bit does install.
How can I install a dual boot version of Windows 7 64 bit without affecting the current Windows 10 32 bit installation on the same SSD? Note the current Windows 10 installation is an upgrade from the original Windows 7 installation. Can I use the original Windows 7 key key to install Windows 7 or will MS activation fail for one of the installations since they would be sourced from the same key?