- Start the Windows 10 installation with a USB bootable drive, then continue the installation. “Custom: Only install Windows (advanced).” Choose the appropriate partitions and select them. “Drive 0 Unallocated Space,” Click Here to Learn More “New,” Set the storage capacity by clicking “Apply” You can also find out more about the following: “OK.”
Windows 10 lets you resize any partition at any point. You can create your own partitions for Windows 10 or apps during Windows Setup if you are planning to create dual-boot systems, or if you wish to keep files separated from the Windows installation.
This guide will show you how to install Windows 10 on a customized partition.
Windows 10: Create a Partition
Follow these steps to install Windows 10 onto a custom partition:
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Start your PC using a Windows 10 USB flash drives.
Important: If you want to boot a USB drive with your device, then you need to change the BIOS setting. Usually, this process requires pressing the ESC or Delete key, one of the F1 or F2 function keys, F10 or F12, or any other F10 or F12-related key. Visit the support site of your PC manufacturer for more precise instructions. This process will also delete all the files on your hard drive. Backup any files you may have before continuing.
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Start by pressing any key.
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Click Here Next button.
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Click Here Install now button.

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Click to confirm or confirm the product code Skip button if you’re reinstalling Windows 10.

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Check this “I accept license terms” option.
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Click Here Next button.
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Install the Windows 10 version you want (if applicable).

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Click Here Next button.
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Select your language “Custom: Only install Windows (advanced).” option.

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Install Windows 10 on the partitions of your hard drive by clicking the Remove button.
Warning: Deleting an entire partition will also remove all the data contained within. Usually the “Drive 0”, storage, contains all of the installation files.
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Select your language “Drive 0 Unallocated Parking Space” item.
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Click Here New Year’s Day button.

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Specific the amount of space to be allocated (in megabytes).

Quick Tip You should set aside between 60GB to 100GB for the operating system. This will prevent you from running out of room and having problems updating. You should reserve more space if your plan is to install many large applications.
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Click Here Use button.
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Click Here OK button.
Quick note Windows 10 will automatically create additional partitions to run and install the operating systems.
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Choose the option “Drive 0 Unallocated Parking Space” item.
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Click Here New Year’s Day Click the button to create more partitions using the space remaining. You can also do this after installation.
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Select your language “Drive 0 Partition 4, Primary” Choose an item from the following list.
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Click Here Next button.

The setup will then install Windows 10 onto your newly created partition.
After installation, you’ll need to go through Out-of Box Experience (OOBE) in order to create an account and complete the configuration.
Create a partition using the unallocated remaining space
You can create an extra partition to store files, documents and other items if you didn’t use the space left during installation.
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Open Start.
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Search for Disk ManagementClick the top search result to launch the app.
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Select the Drive by right-clicking the space that is not allocated on your drive. “New Simple Volume” option.

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Click Here Next button.
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Indicate the size of the partition (in megabytes).

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Click Here Next button.
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Choose a letter in the “Assign a driver letter following” option to make the drive accessible through File Explorer.

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Click Here Next button.
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Select your language “Format this Volume with the Following Settings” option.
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Choose the best NTFS Choose the “File System” option.
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Select your language Please select a default Option in the “Allocation Unit Size” setting.
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Confirm a name for the drive—for example, You can also find out more about the Data In the “Volume Label” setting.
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Check this “Perform a quick format” option.

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Clearing the air Enable compression of files and folders option.
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Click Here Next button.
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Click Here Finish button.
Once you’ve completed the steps, your partition should now format according to the settings you selected and be available in File Explorer.
Updated on January 23, 2020 This guide was updated to reflect the latest changes and ensure accuracy.
