Comparing speed of installation of Win7 vs Win10 vs USB vs DVD HD

Comparing speed of installation of Windows 7 vs Windows 10 vs USB vs DVD ON SSD CPU Intel i3-6100 (51W, Skylake 14nm, iGPU HD530), Motherboard MSI B150M Bazooka, DDR4 Corsair 2133 MHz 2x4GB, SSD Samsung 850 EVO 120GB, Seasonic SS-400ET-F3 400W, Windows 7 x64 Home Premium, Windows 10 x64 Home Premium USB stick - USB 3.1 in USB 3.1 slot (with solved USB driver problem in Windows 7 USB installation) Bios setup - optimized for Windows 7 or Windows 10 (Installation of Windows 7 from a USB stick was again and again with boot record error and the repair was necessary, with tool from installation DVD and command prompt.