1 control of the system is passed to ntoskrnlexe 2 at

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1. Control of the system is passed to ntoskrnl.exe. 2. At this point, the Windows logo is displayed and ntoskrnl.exe: o Loads device drivers. o Starts services. o Configures the OS environment. 3. The wininit and winlogon programs run to allow user logon (at this point, the Welcome screen is displayed). 4. Following logon, all remaining device drivers and user settings are loaded. In addition, the current configuration profile is copied to the Last Known Good Configuration registry. Even though it seems to have more stages, the UEFI boot sequence is considerably faster than the BIOS boot sequence. Modifying the Boot Order 0:00-0:59 In this demonstration, we're going to work with configuring the boot order in either the BIOS or UEFI configuration interface. In this scenario, what we want to do is take this old Windows 7 system and upgrade it to Windows 10. Now there are two different ways to do this, one way is to use the online upgrade that you can access off of Microsoft's website or you can boot the system off of the Windows 10 upgrade media and that is the option that we're going to use in this demonstration. So what I have done is downloaded the appropriate Windows 10 installation media in the form of an ISO file from Microsoft's website and then I have taken that ISO file and copied it using the Windows 7USB DVD download tool to a USB drive and so now what I want to do is boot this system off of the USB drive so that I can run the Windows 10 upgrade. Reboot the System 1:00-3:50 So the first thing I need to do is reboot this system and access my UEFI firmware configuration interface. Let's go down here and click Start and let's do a Restart and as the system is initially restarting I need to press the F2 key to access my UEFI configuration interface. And then within the UEFI configuration interface, I need to locate the option to set the boot order and that's found right here under boot sequence. Now where this option is located on the particular system you're going to be working on will vary between manufacturers and will even vary within models from the same manufacturer. You need to be able to poke around and find the information that you need within your either BIOS or UEFIfirmware configuration interface. On this system I click on boot sequence and when I do I see a list of all the different devices that the UEFI firmware is going to access to try to find an operating systemthat it can boot after POST is complete.
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Now, before we go on I want to point out to you that there are two options down here that are extremely important. Notice that by default legacy is selected. Essentially that makes this UEFI systemoperate as if it were an older BIOS based system and this is actually the option we're going to use in this demo but you need to understand this second option as well.
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