Fix for Low System Reserved Partition on MBR/GPT Disk in Windows 7/8/10

Daisy updated on Sep 10, 2020 to Partition Master | How-to Articles

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.

Part 1: Back up all important data and system
Part 2: Expand system reserved partition on MBR/GPT disk in Windows 10/8/7

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 the free version 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 running smoothly. But when the system reserved partition has low space or error occurs to it, serious problems would happen to 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 with 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 a free partition manager software - EaseUS Partition Master Free which will help you effortlessly extend the MBR disk system reserved partition:

Download Now

 Windows 10 is supported

Step 1. Launch EaseUS Partition Master on your PC.

Step 2. Free up space to extend partition.

If the hard drive has enough unallocated space to extend the target partition, jump to Step 3, and continue. If not, free up space first:

  • Right-click on a partition next to the target partition and select "Resize/Move".
  • Drag the partition ends to free up space, leaving enough unallocated space behind the target partition, click "OK".
free up disk space to get unallocated space

Step 3. Extend partition.

  • Right-click on the target partition and select "Resize/Move".
extend partition -1
  • Drag the target partition handle into the unallocated space to extend partition.
extend partition -2

Step 4. Keep all changes.

  • Click the "Execute Operation" button and click "Apply" to keep all changes.
extend partition -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 complicate with GPT disk to extend the system reserved partition. For protecting system security, 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 Free

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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 Windows 10 is supported

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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?

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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.

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