How to Convert Primary Partition to Logical Partition

Daisy updated on Dec 12, 2018 to Partition Master Guide | How-to Articles

Some users may encounter the following problem:

There are four primary partitions in the hard disk. However, the fifth partition cannot be created. Because of MBR hard disk limitations, either up to four primary partitions or up to three primary partitions plus an extended partition can be created for each basic MBR hard disk. If you want to create more than four partitions, you need to convert one primary partition to logical partition first.

With the help of partition manager software - EaseUS Partition Master, you can easily convert primary partition to logical partition without data loss.

How to convert primary partition to logical partition

Download and install EaseUS Partition Master on your computer, then follow the guide below to convert your primary partition to logical partition with ease.

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 Windows 10 is supported


Step 1: Download and run EaseUS Partition Master. 

open EaseUS Partition Master

Step 2: Right-click the partition you want to convert to logic and choose "Convert to Logical". After that, you can find the pending operation is in the upper left corner. 

convert primary to logical

Step 3: Click the "Execute 1 Operation" button and then choose "Apply" to begin the conversion. Please note that reboot is required for this operation. So save the crucial files in advance. 

convert primary to logical
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 Windows 10 is supported

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Frequently Asked Questions

Why Choose EaseUS Partition Master?

"I've used Partition Master Professional many times to create, delete, format, move, rename, and resize partitions."PCWorld

"Partitioning tools have come a very long since the days of complicated command line utilities and EASEUS Partition Master is one of the most advanced programs available."TECH ADVISOR

"I love that the changes you make with EaseUS Partition Master Free aren't immediately applied to the disks. It makes it way easier to play out what will happen after you've made all the changes."Lifewire

Will the "Migrate OS" feature transfer the Windows system files only or the whole C drive?

To ensure that the migrated system will boot normally, the Migrate OS feature will transfer all the files in the system and the boot partitions. Generally, the boot partition is the C drive so the transfer will include all the files in C.

Does EaseUS Partition Master license apply to multiple computers?

The license of Partition Master Professional and Server editions can be used on 1 computer only, while that for for the Technician and Unlimited editions can be used on multiple machines.

What is the difference between EaseUS Partition Master Trial version and the Free version?

Free is for home users only, with most basic functions available such as partition resize and clone. While trial can help you understand how this product works and test what a full license can do on a business or server OS machine.

Will it cause any data loss after resizing the partition in EaseUS Partition Master?

Generally, it will not cause any data loss or boot issue by resizing a partition. However, in order to protect your data, we suggest that you backup the partition before resizing, in case of any unexpected situations such as power outages, computer hardware failures, etc. You can use EaseUS Todo Backup to backup the partition and its trial version is fully functioned for 30 days.

What should I prepare before resizing the partition?

On the partition that is going to be operated, there might be some files being occupied by other programs. To ensure a successful operation, we suggest that you close all the unnecessary software before resizing that partition. Otherwise, EaseUS Partition Master will detect the partition being locked by the other software and require a reboot to resize the partition under boot mode.

About EaseUS Partition Master

All-round disk & partition management software for personal and commercial use. Let it manage your storage drive: resize, format, delete, clone, convert, etc.

Video Tutorial

How to Partititon a Hard Drive on Windows 10/8/7