We already learned how to shrink a volume or partition in Windows, visit the page if you need reclaim some space. In this article I am going to show you, how you can use the unallocated space in a disk and create a partition with Disk Management and command prompt.
How to create a partition with Disk Management
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Open Start.
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Search for Computer Management and click the result.
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Click on Storage and select Disk Management.
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Right-click the unallocated space and select New Simple Volume.
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Click Next.
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Select the amount of space you want to use for the new partition and click Next.
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Assign a drive letter and click Next.
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Select the format options, including file system (NTFS), allocation unit size (Default), and volume label. Check the “Perform a quick format” and use “Enable file and folder compression” as necessary. Click Next to continue.
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Click Finish to complete the task.
How to create a partition with command prompt
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Open Start.
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Search for Command Prompt, right-click the result, and click Run as an administrator.
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Type the following command and press Enter:
diskpart
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Type the following command to list all the disks in your computer and press Enter:
list disk
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Type the following command to select a disk and press Enter:
select disk 1
Remember to change 1 for the number of the disk you want to partition.
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Type the following command to create a primary partition and press Enter:
create primary partition
Quick Tip: You can specify the amount of space for the new partition, you just need to add size=x (where x is the amount of space in Megabytes) to the command I showed you above. The command would look something like this: create partition primary size=1000 -
Type the following command to list the volumes on your computer (RAW means that the volume doesn’t have a file system) and press Enter:
list volume
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Type the following command to format the partition with NTFS file system and press Enter:
format fs=ntfs quick
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Once you formatted the new partition, you’ll need to assign a letter to the drive. Type the following commands and press enter on each line:
select volume 2 assign letter=f
Quick Tip: If you use the assign command the drive will get a letter automatically, but if you use assign letter=x, you need to specify a letter that is not currently in use. In the command also remember to change 2 for the number of the volume you want to assign a letter.
While we’re focusing this guide on Windows 7, you can also use these steps on Windows Vista.