EaseUS Partition Master

A simple partition tool to manage disk space in Windows 11/10.

  • MBR to GPT Converter, make Disk Ready for Windows 11.
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  • C Drive Cleaner & Windows 11 Performance Optimizer.
  • Rescue Data When Windows 11 Corrupts or Dies.
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Fix for Low System Reserved Partition on MBR/GPT Disk in Windows 7/8/10

Updated by Daisy on Aug 11, 2021

Being confused about what is system reserved partition in Windows 7/8/10 and you are unable to update to the new system? Or are you receiving some error messages due to low system reserved partition space? 

Error Message: We couldn't update system reserved partition or Windows 10 couldn't be installed.

The reason for the error message

The system reserved partition is created during the Windows installation process, which is about 100MB in Windows 7, 350MB in Windows 8, and 500MB in Windows 10. When too many programs are written to the system partition, there is no enough space for upgrading the SRP. If you want to figure out this issue, you have to extend the system partition drive.

we couldn't update the system reserved partition

Here you'll be able to extend system reserved partition and fix low system reserved partition issues in Windows 7/8/10 on GPT/MBR disk by following two parts.

You may think this is not possible, follow and find out how to fix low system reserved partition error and expand your system partition with ease now.

Part 1: Backup all computer data

It’s highly recommended all Windows uses both MBR and GPT disk users to back up their important data including Windows system before trying methods to extend system reserved partition in Windows 10/8/7 etc.

A free Windows backup software may help you to easily backup all important Windows data or system with simple steps. You can Google EaseUS Todo Backup and then free download this software to directly backup all Windows data then.

Part 2: Extend system reserved partition in Windows 7/8/10

Usually, the system reserved partition will not make any big problems, but it still works as an important role for the Windows system to run smoothly. But when the system reserved partition has low space error occurs, serious problems would happen to the Windows system. 
Therefore, it’s highly recommended for users to do not make any changes to the system reserved partition but to keep the size of the partition at 100MB or so. 

It’s also suggested that users should check the system reserved partition usage situations regularly. However, problems may still happen, and low system reserved partition space issue is a top one. So how to fix it? Here below, we’ll offer you an effective method to extend the system reserved partition for both MBR disk users and GPT users.

For MBR users: extend system reserved partition

If you are an MBR disk user with low system reserved partition space problem, you can only shrink volume or add a mirror to the system reserved partition. No access can be done to extend it.

Unable to extend system reserved partition in Windows disk management.

Here we recommend you to try processional partition manager software - EaseUS Partition Master which will help you effortlessly extend the MBR disk system reserved partition:

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Step 1. Click "Adjust with 1-Click" on the right panel.

When your partition is out of space, EaseUS Partition Master will pop up low disk space warning and offer "Adjust with 1-click" option.

how to fix low disk space on your drive or partition step 1

Step 2. Click "OK" to automatically extend partition. 

EaseUS Partition Master will extend the partition to solve the low space issue intelligently after clicking "Adjust with 1-click", and you only need to click "OK" to continue.  

how to fix low disk space on your drive or partition step 2

You can also click "Manual Adjustment" to extend the partition size manually if the Smart Space Adjustment cannot satisfy your needs. Then, click "OK" to continue.

how to fix low disk space on your drive or partition manually

Step 3. Execute operations to extend low disk space partition.

Click the "Execute Operation" button at the top corner and keep all changes by clicking "Apply".

how to fix low disk space on your drive or partition step 3
Generally, you can not distinguish the Windows system reserved partition via the label. The disk type show as Active is the right one.


Then you have successfully extended system reserved partition with simple clicks. And you can view it at the Disk Management under Windows 10/8/7 etc.

For GPT disk users:extend system reserved partition

Things may become more complicated with the GPT disk to extend the system reserved partition. For protecting system security, the system reserved partition in GPT disk is usually marked as EFI system partition, and it’s usually invisible to users. This will help to avoid some unexpected problems.

However, this may prevent users from adjusting or resizing system reserved partition in Windows 10/8/7. Here you may follow the recommended solutions below to try whether it fixes the problem or not:

Method 1. Extend system reserved partition with EaseUS Partition Master

Please follow the same steps offered for MBR users to extend the system reserved partition. But there are some tips that you should keep notified:

  • If EaseUS Partition Master cannot detect the GPT disk system reserved partition, it cannot help to extend the space;
  • If the system reserved partition is detected as other in the file system and none in the system status, EaseUS Partition Master will not be able to extend or add space to the system reserved partition.

Method 2. Search for other solutions to fix low system reserved partition problem

If you do not want to download the third-party tool to fix the low system reserved partition problem and have no stranger to CMD, we’d like to try to search for other solutions:

  • Using Command Prompt to resize or extend system reserved partition;

Resize system reserved partition in Windows 10:

1. Search cmd on the search bar. Right-click the Command Prompt and select Run as administrator.

2. Input mountvol y: /s > Enter

It will add Y: drive letter to access the system partition.

3. Type Y: and press Enter. And then type cd EFI\Microsoft\Boot\Fonts to the Fonts folder.

4. Type del *.* to delete the font files. Then, press Y and Enter to continue.

Increase system reserved partition in Windows 7/8:

1. Search cmd > Right-click the Command Prompt > choose Run as Administrator.

2. Type mountvol y: /s > Enter

This will add Y: drive letter to access the system partition.

3. Type taskkill /imexplorer.exe/f > Enter > explorer.exe > Enter > reboot File Explorer as Admin mode

4. Open File Explorer > type Y: \ EFI \ Microsoft \ Boot \ > Enter

5. Choose language folders to delete. > restart device

This method needs professional knowledge about cmd. If you are not proficient in this tool, don’t try it, otherwise your computer will cause startup error.
  • Try some other partition manager software;
  • Delete system reserved partition (some users tired but not recommended).
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Updated by Daisy

Daisy is the Senior editor of the writing team for EaseUS. She has been working in EaseUS for over ten years, starting from a technical writer to a team leader of the content group. As a professional author for over 10 years, she writes a lot to help people overcome their tech troubles.

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Product Reviews

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

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