5 Fixes: How to Solve Error Code 0x81000033

This article provides 5 ways to fix error code 0x81000033, you can follow the instructions in this article and try them one by one until your problem is solved.


By Miya Updated on December 7, 2023

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What Is Error Code 0x81000033?

Error code 0x81000033 in the context of Windows backup typically indicates an issue related to the backup process. This error may occur when you are trying to create a backup or restore your system using Windows Backup or File History. The specific message associated with this error code can vary, but it generally signifies a failure or interruption in the backup operation.

Common causes of error code 0x81000033 may include:

  • Corrupted System Files: Issues with critical system files can lead to backup errors.
  • Incomplete Backup Configuration: Incorrect settings or incomplete configuration of backup options.
  • Insufficient Storage Space: If the destination drive or location where you are trying to save the backup does not have enough space.

So what are the ways we can fix this error code? Follow this article to explore the solution to the problem.

How to Solve Windows Backup Error Code 0x1000033

Explore the following solutions that can prove beneficial upon encountering this error code.

Solution 1. Free Up Disk Space

Upon encountering the error code, employ Disk Cleanup to reclaim additional free space. Subsequently, restart your PC and attempt to create a system backup once more. If the error code 0x81000033 persists, consider trying the subsequent solution.

Tip: Apart from this approach, alternative methods for freeing up disk space are available. Refer to a comprehensive article on the topic - "3 Easy Methods to Free Up Disk Space in Windows 11."

Solution 2. Easily Backup Your Windows via third-party software

If you don’t want to suffer from backup error code 0x81000033 and want a reliable backup tool, you can choose a free and excellent backup software, AOMEI Backupper. It is a versatile freeware, caters to various backup needs with its user-friendly interface and efficient functionality. Here's a brief overview:

✍Versatile Backup Options: AOMEI Backupper supports system, folder, disk, partition, and file backups, ensuring it meets diverse user needs.
✍Flexible Storage Options: Store backup images on external/internal hard drives, NAS, USB/DVD/CD. AOMEI Cloud  integration allows additional backup storage.
✍Automated Backup Scheduling: Users can schedule automatic backups on a daily, weekly, or monthly basis for added convenience.
Incremental and Differential Backup: Apart from scheduled backups, the freeware supports incremental and differential backups, capturing new and modified data efficiently.
✍Additional Backup Features: Users can enhance their backup strategy by adding comments, compressing backup images, splitting images, encrypting backups, and enabling email notifications. (Pro version)
✍User-Friendly Interface: AOMEI Backupper's intuitive interface simplifies the backup process, requiring just a few clicks. For instance, setting up a system backup is straightforward.
✍Specialized Version for Windows Servers: For  Windows Server users, AOMEI Backupper Server is recommended for optimal performance.

The intuitive interface enables you to effortlessly configure a data backup task with just a few clicks. Let's illustrate this by using a system backup as an example.

Step 1. Begin by downloading the software for free and completing the installation process. Once installed, navigate to the Home screen, click on Backup, and choose System Backup.

AOMEI Backupper

Best free Windows backup software for personal use.

Tip: Opt for Disk Backup to safeguard all data on the hard drive, encompassing more than just the operating system.

System Backup

Step 2. Click the second box to designate a location for storing the backup image file. Options include external hard drives, internal drives, or network locations.

Select Destination

Step 3. Initiate the backup process by clicking on Start Backup.

Backup Data

●Options: In this section, you can add comments and adjust the compression level for your backups. If encryption is desired, consider upgrading to AOMEI Backupper Professional edition.
●Schedule: Automate regular backups with options like Daily, Weekly, Monthly, Event triggers, and USB plug in.
Backup Scheme: Select your preferred backup method. Opting for Differential backup is recommended over Incremental, as the former allows for easier restoration. The program automatically manages disk space by deleting old image files. To access this feature, an upgrade to AOMEI Backupper Professional is required.

Solution 3. Expand Size of the System Reserved Partition

Insufficient free space within Windows 10 partitions is a leading cause of the 0x81000033 error. Consequently, expanding the System Reserved Partition proves highly effective when your computer grapples with partition space constraints.

To resolve the backup error code 0x81000033 using this method, create a system volume and designate it as the new system reserved partition.

Step 1. Open File Explorer by pressing Win + E and identify all existing drive letters. Launch the Command Prompt as an administrator.

Step 2. Copy and paste “bcdboot.exe /s C:\Windows /s G:” in the command prompt window and press Enter. (In this code, “C” signifies the root drive, and “G” denotes the newly created system volume.)

Step 3. Execute the subsequent commands one by one, ensuring to press Enter after each command.

DISKPART> select volume G
DISKPART> active

Step 4. Restart your PC to solve Windows 10 backup fails to complete.

Solution 4. Remove Unnecessary Language Packs

Excessive language packs not only consume significant disk space but also impede the system's ability to generate restore points. Therefore, it is advisable to eliminate unwanted language packs through your PC's Settings.

Step 1. Access the Start menu and click on Settings.

Step 2. Navigate to Time & Language.

Time Language

Step 3. Within the Language window, select the desired language pack for removal by left-clicking on it, and then click on Remove.

Click on Remove

Solution 5. Enable System Protection

The System Protection feature is typically deactivated by default, causing difficulties in creating restore images. Enabling this feature is a straightforward solution, especially if you have never turned on system protection.

Step 1. Simply navigate to the Settings of your PC and click on System. In the System>About window, choose System protection.

System Protection

Step 2. Subsequently, select the system drive and click on Configure within System Properties.

System Properties

Step 3. Within the displayed window, ensure to mark the option for Turn on system protection

Solution 6. Update Outdated Device Drivers

Outdated device drivers represent another significant factor contributing to the occurrence of backup error code 0x81000033. Follow the steps below to update drivers, using the update of a graphics card driver as an illustration.

Step 1. Input Device Manager into the search bar and select the most relevant result.

Step 2. Within the Device Manager window, click on Display adapter, right-click on your graphics driver, and opt for Update driver.

Update Driver

Step 3. Within the appearing window, select Search automatically for drivers. Subsequently, Windows will search for the latest driver software for your PC on the Internet. If a newer version is found, Windows Device Manager will download and install it for you.

Search Automatically for Drivers

Apart from this you can also check the backup settings and run System File Checker (SFC): use SFC utility to scan and repair corrupted system files. Open a command prompt as administrator and run the command sfc /scannow. Simply restarting your computer can solve the temporary problem.

Your Turn

This article provides 5 ways to fix error code 0x81000033. You can follow the instructions in this article and try them one by one until your problem is solved. If you want to avoid this kind of error and backup your Windows OS well, then we still recommend you to use professional backup software AOMEI Backupper.

It offers the simplest operation and ensures the utmost data security. If you're not inclined towards image backup, AOMEI Backupper Professional also allows you to opt for disk cloning or system cloning as an alternative method for backing up data in Windows 10.

Miya · Editor
Miya has an excellent insight and receives professional and systematic technical training since joining AOMEI. She has a comprehensive understanding of computer issues, aiming at helping users troubleshoot all kinds of problems. A lot of computer users around the world have found her articles very helpful!