Windows could not prepare the computer to boot into the next phase of installation.

Hi Kayashk. I'm Greg, awarded MVP for eleven years, Volunteer Moderator, and Independent Advisor here to help you until this is resolved.

I will give you all possible steps to troubleshoot Windows installation failure which work in about 90% of cases. If not we'll go from there:

Follow the illustrated Clean Install steps in this tutorial which compiles the best possible install that will stay that way as long as you stick with the tools and methods given: http://answers.microsoft.com/en-us/windows/wiki...

Make sure all other drives and peripherals are unplugged. Update the BIOS or UEFI firmware to latest, or reset to Defaults, making sure (if you have it) UEFI is enabled, CSM or Legacy BIOS disabled, Windows Boot Manager set first to boot, if necessary disable Secure and Fast Boot until after install, set SATA controller to AHCI, Save changes and Exit. Access BIOS/UEFI Setup as shown here: https://www.mydigitallife.net/comprehensive-lis...

https://www.groovypost.com/howto/reset-pc-bios-...

Create the latest Windows 10 Installation Media by installing Media Creation Tool and following the directions here: http://windows.microsoft.com/en-us/windows-10/m.... If you're using another PC to do this uncheck the box for Recommended Settings to choose the exact version and bit rate for the target PC only.

Insert media, boot it by powering up PC while pressing the BIOS Boot Menu Key: https://www.sysnative.com/forums/hardware-tutor...

If the media won't boot you may need to enter BIOS/UEFI Setup (pressing key given in chart in link above) to turn off Fast Boot or Fast Startup first. If you can start Windows enter UEFI firmware here: http://www.isunshare.com/windows-password/four-...

The media may also be bad, so confirm it boots and queues up per these steps in another PC, or else recreate it. You can also try a DVD, or the alternate download site from MS TechBench here: https://tb.rg-adguard.net/public.php. Burn to DVD using WIndows Image Burner or create bootable flash using one of the options here: https://www.tenforums.com/tutorials/2376-create...

Choose the boot device as a UEFI device if offered, on first screen press Shift + F10 to open a Command Prompt, type the following commands, each followed by Enter key:

DISKPART

LIST DISK

SEL DIS # (replace # with the disk # of the Windows disk from list in previous command)

CLEAN

EXIT

Close Command Box, on second screen choose Install Now, then Custom Install, then at the drive selection screen choose Unallocated Space, click Next to let it create needed partitions and start install - this makes it foolproof.

Make sure to follow the setup steps in the first link tutorial to complete your install. Drivers are important enough that those steps are printed in red.

You will get and keep the best possible install to the exact extent you stick with the steps, tools and methods in the first linked tutorial. It's a better install than any amount of money could buy and a great learning experience that will make you the master of your PC.

If all else fails you can move the hard drive to another PC to do the install with it plugged in alone. Windows 10 is remarkably adaptive to new hardware without needing adaptive restore. If it will start it will swap out all drivers requiring several restarts. You can also try applying a same-version System Image to the intact SSD/hard drive.

I hope this helps. Feel free to ask back any questions and let us know how it goes. I will keep working with you until it's resolved.

________________________________________________________

Standard Disclaimer: There are links to non-Microsoft websites. The pages appear to be providing accurate, safe information. Watch out for ads on the sites that may advertise products frequently classified as a PUP (Potentially Unwanted Products). Thoroughly research any product advertised on the sites before you decide to download and install it.

I am using a bootable USB from the Microsoft website, it is installed correctly

What are you using to install Windows 10?

Do you have the Boot Manager configured correctly?

After booting from the USB and installing did you go back to the Boot Manager and put the internal drive that has C:\ on at the top?

Hello,

See if this fix helps you:

https://www.kapilarya.com/fix-windows-could-not-prepare-the-computer-to-boot-into-the-next-phase-of-installation-windows-10

Let us know if this helps!

Note: Included link in this reply refers to blog post by a trusted Microsoft MVP.