What Is System Reserved Partition and How to Delete It [2021 Updated]

Brithny updated on Nov 04, 2020 to Partition Master | How-to Articles

This page includes everything you may want to learn about the System Reserved Partition. On this page, we'll show you:

System Reserved partition

  1. 1. What is system reserved partition?
  2. 2. What is system reserved partition used for?
  3. 3. How do I check my system reserved partition?
  4. 4. What happens if you delete system reserved partition?
  5. 5. How to deal with system reserved partition?
  6. 6. How to delete system reserved partition?

IMPORTANT: As operations that you are about to make here are very dangerous, and in case if you make any mistake, you might result in a non-bootable PC. Therefore, first of all, please make sure that you make a backup of system before making any changes.

System Reserved Partition Overview
How to Deal with System Reserved Partition - Check If It's Deletable
How to Delete System Reserved Partition

System Reserved Partition Overview

In this part, we'll explain to you everything about System Reserved partition here:

1. What is system reserved partition?

System Reserved Partition is a partition for data storage which locates before the system C: drive. It is generated during the clean installation process of the Windows operating system so as to reserve a part of the disk space for subsequent use. Windows usually doesn't assign a drive letter to System Reserved partition.

It starts from Windows 7 consuming 100 MB space, and continues to use on Windows 8 and Windows 10 but consuming more space which is 350 MB. Sometimes, Windows OS saves some system components into the System Reserved Partition for booting up PC. 

2. What is System Reserved Partition used for?

 You can use it as a normal data storage partition. And sometimes, Windows use it as a boot partition to load necessary information for the computer to boot up.

3. What happens if you delete System Reserved partition?

Basically, if the System Reserved partition contains OS information or boot files and you directly delete it, you'll meet OS won't boot issue. In other words, the computer cannot boot if you directly delete the System Reserved partition without checking if it's deletable.

In the next part, we'll show you how to deal with a System Reserved partition.

How to Deal with System Reserved Partition - Check If It's Deletable

It's unlikely for most of the computer users to notice a non-drive letter assigned partition called "system reserved" until they open Disk Management under Windows 7, 8 or 10. 

In this part, we'll show you how to check System Reserved partition and help you to confirm if the partition is deletable. Before you start deleting this partition, it's important that you follow the tutorial here to check the partition and then decide how to deal with the System Reserved partition:

Step 1. Right-click on This PC/My Computer icon on the desktop and select "Manage".

Step 2. Click "Disk Management" on the pop-up window.

Step 3. Check the System Reserved partition and see if it contains "System" information next to the Healthy state.

Step 4. Decide what to do with this partition:

  • If your System Reserved partition contains "System" information, we suggest you don't delete it as your system will need to load the computer from this partition.

Check System Reserved partition

  • If the System Reserved partition doesn't contain the "System" information, you can flexibly delete it. 
  • If you tend to delete the System Reserved partition and OS partition so as to use the OS disk as a normal data drive, you can also choose to delete it. 

So how to delete this partition from your computer? In the next part, you'll learn how to delete System Reserved partition on Windows 10/8/7.

How to Delete System Reserved Partition

Albeit it is of great importance in booting up Windows with the System Reserved partition. But if the System Reserved partition doesn't contain any system boot components or information and you don't want this partition on your drive, you can delete it.

However, you cannot use Windows Disk Management to delete this partition as Windows' protection mechanism command the tool not to delete this partition.

In this case, you need the help of the best Windows disk management alternative - EaseUS Partition Master. It's a reliable and powerful free partition manager that helps you safely delete the System Reserved partition with ease.

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 Windows 10 is supported

Note: If you tend to use an OS drive as a data disk and tend to delete the System Reserved partition and other existing drives, make sure that you have installed or migrated OS to a new HDD/SSD. Also, if you have important data saved in this partition, back up them to another drive or location first.

Tutorial on How to Delete System Reserved Partition on Windows 10/8/7

Let's start the process of removing your System Reserved partition from your drive now:


Step 1: Launch EaseUS Partition Master on your computer, right-click the partition you want to copy, and choose "Clone".

Clone Partition - Step 1

Step 2: EaseUS Partition Master will select the unallocated space on your computer as the target partition automatically. Check it and click "Next" to continue.

Clone Partition - Step 2

Step 3: Then you can adjust the size of the target partition according to your needs. After that, click "OK".

Clone Partition - Step 3

Step 4: Click the "Execute Operation" button in the top-left corner to review the changes, then click "Apply" to start cloning your partition.

Clone Partition - Step 3

The following video tutorial shows you how to delete, create, and resize partition on Windows 10/8/7. You can learn how to delete system reserved partition.

Besides this, EaseUS Partition Master also helps to: 


On this page, we explained that is System Reserved partition and what it is mainly used for. If you tend to delete the System Reserved partition, we suggest you check if this partition is delectable first.

If it contains system data, don't delete it. Otherwise, you'll meet Windows or PC won't boot issue. If it doesn't contain system data, you can delete it.

As for the partition deleting tool, take powerful partition manager software - EaseUS Partition Master as your first choice. It always works to help.

Download Now

 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

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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