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What is System Reserved Partition and How to Delete It [Windows 11 Available]

Updated by Roxanne on Aug 27, 2021
Written by Brithny

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

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, 8,10,11. 

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 11/10/8/7.

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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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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 11/10/8/7

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

Step 1. Right-click the partition you want to copy, and choose Clone.

Step 2. Choose your the target partition and click Next to continue.

  • If you clone partition to the existing partition, you should transfer or back up data before cloning to prevent it being overwritten.

Step 3. Click Proceed and wait for the clone to complete.

You can check how to clone partition or system reserved partition on this video tutorial.

The following video tutorial shows you how to delete, create, and resize partition on Windows 11/10/8/7. 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.

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Updated by Roxanne

Roxanne is one of the main contributors to EaseUS and has created multiple posts on digital devices like PCs, Mobile phones, tablets, Mac, etc. She loves to share ideas with people of the same interest.

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Written by Brithny

Brithny is a technology enthusiast, aiming to make readers' tech life easy and enjoyable. She loves exploring new technologies and writing technical how-to tips. On her spare time, she loves sharing things about her favorite singer - Taylor Swift on her Facebook or Twitter.

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  • 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. I also think the overall look and feel of EaseUS Partition Master Free makes whatever you're doing with your computer's partitions easy.

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  • Partition Master Free can Resize, Move, Merge, Migrate, and Copy disks or partitions; convert to local, change label, defragment, check and explore partition; and much more. A premium upgrade adds free tech support and the ability to resize dynamic volumes.

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  • It won't hot image your drives or align them, but since it's coupled with a partition manager, it allows you do perform many tasks at once, instead of just cloning drives. You can move partitions around, resize them, defragment, and more, along with the other tools you'd expect from a cloning tool.

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