How to Partition A Portable Hard Drive in Windows 10/8/7?

April 12, 2016

Partition a portable hard drive in Windows 10/8/8.1/7/Vista/XP is a must so as to make it a protection to save your important data and a hard drive with multiple partitions is beneficial. To partition a portable hard drive, AOMEI Partition Assistant will solve the problem easily.

Partition a portable hard drive is important and beneficial

Only if your disk is formatted with partition that you can store information on it, and multiple partitions on the disk will be a great benefit for you to manage your important data. For example,

If you have partitioned your hard drive and put your data into different partitions, things won’t be serious when data stored in a same partition is corrupted or deleted accidentally, at least the data in other partitions won't be affected.

Encryption is one of the fundamental methods for avoiding critical data from stealing or corruption, but it slows down the performance of your computer. However, a portable hard drive with multiple partitions will protect your data by encrypting while not affecting the performance of your computer much. To do so, classify the important data into one partition and encrypt only the partition. As a result, your computer’s performance won’t be so bad.

Partition a hard drive allows you to get multiple partitions and lets your computer finds files and data more quickly as it only needs to search related partition, not the whole hard drive. Besides, it’s easier for you to categorize files and folders in different partitions.

Next, we will talk about how to partition a portable hard drive which applys toall Windows editions including Windows XP\Vista\7\8\8.1\10.

How to partition a portable hard drive?

Situation 1: partition a hard drive with unallocated space

When there are some unallocated on your old hard drive or you just buy a new hard drive, it’s very easy for you to create partition on hard drive with the unallocated space.You can use Windows built-in Disk Management to do the job, or a software is good. Here, we will shoe you how to partition a hard drive with Disk Management.

Step 1: Right click the unallocated space on disk (here is disk 1), and select “New Simple Volume”.

Create New Volume

Step 2: Follow the wizard to set new volume’s size, file system and drive letter. Finally, you get a partition.

Have New Volume

If you want to have more partition here, DM cannot help you do that now as there is no unallocated space anymore. Therefore, we will show you how to partition a hard drive when disk is without unallocated space.

Situation 2: partition a hard drive without unallocated space

If there is no unallocated space on your disk since you have used it for some time, and you do want to create other new partitions for different kind of data, a third-party software is needed because DM doesn’t support to create new partition without unallocated space. Here, we recommend you AOMEI Partition Assistant to generate more partitions on exiting partition of disk.

Step 1: Download, install and launch AOMEI Partition Assistant. Right click the partition on disk (here is the only partition F), and select “Create Partition”.

Create Partition

Step 2: In the pop-up window, set the partition size and drive letter. “Partition label” and “File System” are hidden under “Advanced”. If your drive is SSD, tick the selection “Partition alignment for SSD” is recommended to optimize you SSD’s write\read speed. When everything is set down, click “OK”to continue. (Here, disk 1 is a GPT disk, so the partition will be primary partition by default.)


Step 3: You can view result here, and do not forget to “Apply” the operation.

View Operation

Except “Create Partition”, you can choose other two utility to generate partitions, too.

Resize a partition: Click Resize Partition. Drag the slider bar leftwards in the new window to form an unallocated space, and then create a partition.

Split partition into two: Click Split Partition. In the new window, specify the size of new partition and click “OK” to finish the job.

Other Ways

Attention: please remember to click "Apply", that is a necessary step, then there will be a dialog box, you need to click "Proceed" to apply the operation.

Ok, under the help of AOMEI Partition Assistant, you will be able to partition an portable hard drive in all Windows editions perfectly. In addition, the data will be kept completely for you. After your first-hand experience you will find it is really safe and simple to partition your hard drive with the AOMEI Partition Assistant.