Hi natakuc4 thank you for replying. Windows 10 on the upgrades after doing the upgrade you can create a install ISO on a bootable USB in order to use this when you boot your machine you have to select either cd dvd or usb. I believe that Ubuntu also allows this in Linux but usually use DVD's burned from the iso image. Larry
problems trying to select a usb device at start-up to install an OS One of the things Windows 10 OS is doing is allowing the creation of a USB stick with the OS on it. I have tried setting the boot sequence so that at start up F12 I can select the device and after the install process that it will restart and boot from the hard drive. My system is the optiplex 760   8gig memory    16500 processor    VM selected. so far I have Onboard or USB Floppy Drive USB Drive Sata0-st3160815AS Onboard or USB CD-Rom Drive No matter how I arrange these four options either it will not find the usb device and cause an device error or it will find the USB and when it restarts will cause an error. It does perform properly when I use a dvd for the process.  Larry
boot problem optiplex 760