[Solved] How Do I Fix “Windows Could Not Prepare The Computer To Boot Into The Next Phase Of Installation” Error?

PC getting stuck while it is updating/ installing your windows is the most frustrating moment of our life. Believe me, you are not the only one who faced this issue. What makes it much more worrisome is the fact that you are not supposed to turn off your pc, no matter how much lag it may seem at that moment.

But if your pc shuts down while it is in the middle of updating your Windows, then it can invoke a variety of serious errors. One of these errors is the “Windows Could Not Prepare The Computer To Boot Into The Next Phase Of Installation” error.

What Is “Windows Could Not Prepare The Computer To Boot Into The Next Phase Of Installation” Error?

“Windows Could Not Prepare The Computer To Boot Into The Next Phase Of Installation” error occurs when windows can’t define in which drive it should install. Generally, there are two drives with the same name, which is commonly the C drive. 

What is “Windows Could Not Prepare The Computer To Boot Into The Next Phase Of Installation” Error?

Why Am I Getting This Error? How To Fix it? 

There are various reasons why you are getting errors, let’s dive into these and see how you can solve it all by yourself. But first, let’s see if we can do it with some basic troubleshooting and then dive into an advanced version of it.

Basic Troubleshooting: 

  • Compatibility issue: Sometimes it is just because of non-compatible windows you are trying to install on your pc. So do ensure that the version of windows which you are trying to install on your computer is compatible with it.
  • Check for external devices: Another most common issue responsible for this type of error is external devices connected to your pc. To solve this, you just need to remove the external devices and then try the whole process of updating/installing windows again.
  • Having same drive letters: Having the same drive letters for two different drives on your pc is also one of the most common reasons for this type of error. To solve this, you can refer to this video.

Advanced Troubleshooting: 

  • Corrupted bootable USB drive: If none of the basic troubleshooting techniques seems to work, then there is a high possibility that the USB drive you are using to install windows on your pc is corrupted, or it has some files missing. To solve this issue follow these simple steps and the problem should be solved but also make sure that you satisfy the prerequisites given below.


    • A reliable internet connection 
    • A USB drive with at least 8 GB of free space
    • A PC that already has Windows installed (current PC)

Now, when you have made sure that you have satisfied the prerequisite. Let’s begin with the steps given below

  • Step 1: Connect the USB device to your Windows 10 computer.
  • Step 2: For the next step, you’ll need to format your USB drive to exFAT. For more information on how to format a USB drive in Windows 10, click this link here.
  • Step 3: Now go to Microsoft software download and select Download Media Creation Tool (MCT).
  • Step 4: To start the program, double-click the MediaCreationToolxxxx.exe file. This file should be saved in your Downloads folder, or anywhere you’ve designated for downloads. The version of Windows 10 is indicated by the final four numbers of the file name.
  • Step 5: Now click Accept/Yes in the pop-up window.
  • Step 6: Now, when the application opens, select the Create installation media option and click Next.
  • Step 7: Now it’s time to choose the language, architecture, and edition of the bootable USB you wish to use. You may look here to see whether to use the suggested selections for this PC box to maintain your current language, edition, and architecture. You may also adjust the selections by using the drop-down menus. 
  • Step 8: Next, select the USB flash drive and click Next.
  • Step 9: Click Next after selecting the removable USB drive you wish to use. Disconnect the other drives if you have more than one device attached to your computer and aren’t sure which one to use. If the drive you wish to use isn’t shown, click the Refresh drive list.
  • Step 10: Finally, the Media Creation Tool will begin downloading the most recent Windows 10 installation files to your machine. This procedure might take up to 30 minutes to complete.
  • Step 11: Now it is time to click Finish and you are done. Go to File Explorer and verify your discs on ‘This PC’ if you built a bootable USB stick with the Windows 10 installation on it. Your drive should be titled USB-ESD or something like (Electronic Software Delivery). You should see boot files and a setup.exe file when you access the disc.

Frequently Asked Questions (FAQs)

1.) What is the Best Way To Install Windows 10 on a Fresh SSD?

Windows 10

When it comes to installing windows on an SSD, it is not that much different from as it is on an HDD. However, there are a few things you should keep in mind.


  • A PC that already has Windows installed (current PC)
  • A USB drive (MUST BE EMPTY! You may use other media kinds as well, but it will be much more difficult.) To format it, go to This PC, right-click the USB drive, and select ‘format.’ All of your files will be deleted.)
  • At least 5 GB free on your current PC
  • At least 20 GB free on your target PC
  • A Windows 10 Key (or trial)

To properly install Windows 10 on your fresh SSD, follow these simple steps, and you are good to go

  • Step 1: Make a new Windows 10 installation media on a USB flash drive.
  • Step 2: Connect your computer to the disc containing the Windows 10 installation files and install the SSD.
  • Step 3: Modify the boot order for the installation disk.
  • Step 4: Click “Install Now” in the initial Windows Setup screen.
  • Step 5: Once the installation process is complete, you can enter UEFI/BIOS and set the first Boot up the device as the new SSD.

For more info, you can refer to this video.

2.) How to perform a clean boot?

It might be hard for a beginner to perform a clean boot. To overcome this difficulty, follow these simple steps to perform a clean boot

  • Step 1: Sign in to the computer as an administrator.  If you don’t have an administrator account, you can create one.  Create a local user or administrator account in Windows 10.
  • Step 2: In the search box on the taskbar, type MSConfig and select System Configuration from the results.
  • Step 3: On the Services tab of System Configuration, select Hide all Microsoft services, and then select Disable all.
  • Step 4: On the Startup tab of System Configuration, select Open Task Manager.
  • Step 5: Under Startup in Task Manager, for each startup item, select the item and then select Disable.
  • Step 6: Close Task Manager.
  • Step 7: On the Startup tab of System Configuration, select OK. 

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