EaseUS Partition Master

A simple partition tool to manage disk space in Windows 10

We Couldn't Update the System Reserved Partition Windows 10

Updated by Gemma on Dec 11, 2020
Written by Brithny

QUICK VIEW: The System Reserved Partition (SRP) requirements for installing a Windows 10 upgrade, or update:

we couldn't update the system reserved partition

  • To upgrade your device, you'll need to free up at least 15MB of space on the SRP
  • If you're updating Windows 10, you need to free up at least 13MB on the SRP.

Otherwise, the Windows 10 upgrade or update will fail due to the error message [We couldn't update the system reserved partition].

Don't panic. You can easily get the appropriate System Reserved Partition space by using EaseUS partition manager as soon as possible.

Windows 10 [We couldn't update the system reserved partition]

"I cannot install Windows 10 on my computer, and it insists warning me with the error message [we couldn't update the system reserved partition]. What is the system reserved partition? What should I do to remove the error and continue installing the Windows 10 upgrade on my computer? I wish somebody could help."

Have you ever encountered the same problem related to the System Reserved Partition (SRP) while trying to upgrade Windows 7 to Windows 10, Windows 8 to Windows 10, or simply get a Windows 10 new update on your PC? You're not alone. Here on this page, you'll figure out the reasons why you receive Windows 10 unable to update the system reserved partition and meanwhile get corresponding solutions. 

Causes: We couldn't update the system reserved partition

When upgrading to, or updating, Windows 10, you might encounter the error "We couldn't update the system reserved partition", error code 0xc1900104, or error code 0x800f0922. First of all, what leads to Windows 10 could not update the system reserved partition?

Regarding the incident of a hidden System Reserved Partition, there are mainly two reasons to meet the error during the Windows 10 update or upgrade procedure.

  1. 1. The system reserved partition is full, lack of free space for the system files - 80% likeliness
  2. 2. The system reserved partition inner error, something goes wrong with the drive

Hence, to possibly install Windows 10 updates on your computer without receiving the system reserved partition error, you should attempt to increase the system partition in the first place, and try to fix the corrupted system drive as a complementary solution.

Tip: No matter how you choose to fix Windows partition problems, we highly recommend you back up important personal files and data firstly, to avoid the unexpected data loss trouble.

Solution 1. Fix the system reserved partition full problem

One major reason that Windows 10 couldn't update the system reserved partition is that the system reserved partition is in low disk space for updating and installing the new system files. Therefore, to directly fix such a problem, you need to extend the system reserved partition space. For average users particularly, you must try EaseUS Partition Master Free which can resize system and non-system partitions automatically for you without losing any data. 

The success of fixing we couldn't update the system reserved partition hugely depends on what fixing tools you choose. EaseUS free partition manager will be 100% helpful in extending the system reserved partition and get extra free space that required to install the Windows 10 system files on SRP.

Follow the simple steps to extend your system reserved partition now:

Step 1: Locate the drive/partition

Select the drive/partition that want to adjust its size and right-click on it to choose "Resize/Move".

choose the partition

Step 2: Resize or move the partition

1.To shrink the partition, simply drag one of its ends to free up unallocated space. Once done, click "OK". 

drag the mouse leftwards to resize partition

2. To extend the partition, make sure that there is unallocated space aside (if there isn't, follow the above steps to create some). In the same way, drag your mouse into the unallocated space. Click "OK".

drag the mouse leftwards to resize partition

3. To move a partition position, you need to leave unallocated space next to the target partition. If no, free up some unallocated space first.

Right-click the target partition, select "Reize/Move". Then drag the whole partition left or right to adjust its position. Click "OK" to confirm. 

drag the mouse leftwards to resize partition

Step 3: Apply changes

At this step, you will see the new disk partition information & diagram.

disk partition information after resizing

To save changes, click the "Execute Operation" button and then "Apply".

apply changes to the partition

Solution 2. Fix the corrupted system reserved partition

Though the chance is small, It might be the Windows system partition inner error that causes Windows 10 couldn't update the system reserved partition and fail to get the latest updates. So do you know how to check and fix Windows partition errors? If you are not quite familiar with Windows disk management, you are highly recommended to use this simple repair tool again - EaseUS Partition Master Free. It allows users to check and fix partition errors within only 3 steps. Now download the software for free and follow the below guide to check and fix system reserved partition error with ease.

Guide: How to fix the system reserved partition corruption with three steps

Step 1. Open EaseUS Partition Master on your computer. Then, locate the disk, right-click the partition you want to check, and choose "Advaned" > "Check File System".

choose Check Partition

Step 2. In the Check File System window, keep the "Try to fix errors if found" option selected and click "Start".

check the pop-up instructions

Step 3. The software will begin checking your partition file system on your disk. When it complets, click "Finish".

finish partition check

Some useful 'system reserved partition' related articles you might be interested:

Was This Page Helpful?

author icon

Updated by Gemma

Gemma is member of EaseUS team and has been committed to creating valuable content in fields about file recovery, partition management, and data backup etc for many years. She loves to help users solve various types of computer related issues.

Read full bio

author icon

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.

Read full bio

Product Reviews

TrustScore 4.7 | 49 reviews
  • 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.

    Read More
  • 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.

    Read More
  • 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.

    Read More

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.

Product Reviews



Video Tutorial

Video poster

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

Was This Page Helpful

How Can We Help You

Find answers to common questions below.