How to Merge Two Partitions in Windows 11: A Step-by-Step Guide

If you have two partitions on your Windows 11 computer and you want to combine them into one, it’s actually pretty straightforward. You’re essentially going to use a built-in tool called Disk Management to delete one partition and extend the other. Just a heads up, this process will erase all data on the partition you delete, so make sure to back up any important files first!

How to Merge Two Partitions in Windows 11

In this section, we’ll dive into the exact steps you need to follow to merge two partitions on your Windows 11 machine. This process will involve deleting one partition and extending another to fill up the newly available space.

Step 1: Open Disk Management

First, you need to access Disk Management by searching for it in the Start menu or by pressing "Win + X" and selecting it from the menu.

Disk Management is a powerful tool that lets you handle all your disk-related tasks. It shows you a visual representation of your drives and partitions, making it easier to manage them.

Step 2: Back Up Important Data

Before you proceed, ensure that you have backed up all crucial data from the partition you plan to delete.

This step is crucial because once you delete a partition, the data on it is gone forever. Better safe than sorry, right?

Step 3: Delete the Partition

Select the partition you want to delete, right-click on it, and choose "Delete Volume."

When you delete a partition, it becomes unallocated space. This unallocated space can then be added to another partition.

Step 4: Extend the Remaining Partition

Right-click on the partition you want to extend and select "Extend Volume." Follow the wizard to add the unallocated space to this partition.

The wizard will guide you through the process, letting you specify how much of the unallocated space you want to add to the existing partition.

Step 5: Confirm Changes

Review the changes and click "Finish" to apply the changes.

Once you finish the wizard, the Disk Management tool will immediately apply the changes. Your two partitions will now be merged into one.

After completing these steps, your two partitions will now be combined into a single, larger partition. You can now store files and install programs on this newly extended partition without any issues.

Tips for Merging Two Partitions in Windows 11

  • Always back up your data before making any changes to disk partitions.
  • Make sure your computer is plugged in to avoid any power interruptions.
  • Use Disk Management only if you’re comfortable with it. There are third-party tools that can also help.
  • Double-check which partition you are deleting to avoid losing important data.
  • If you’re unsure at any step, consider seeking help from a tech-savvy friend or professional.

Frequently Asked Questions

Will I lose my data if I merge two partitions?

Yes, you will lose data on the partition you delete. Always back up your data before proceeding.

Can I merge partitions without losing data?

The built-in Disk Management tool in Windows 11 doesn’t allow merging without data loss. For that, you might need third-party software.

How long does it take to merge partitions?

The time it takes depends on the size of the partitions and your computer’s speed. Usually, it takes just a few minutes.

Is it safe to merge partitions?

Yes, it’s safe as long as you follow the steps carefully and back up your data beforehand.

Can I undo the merge if something goes wrong?

Once you delete a partition, the data cannot be recovered unless you have a backup. Be very cautious before proceeding.


  1. Open Disk Management.
  2. Back Up Important Data.
  3. Delete the Partition.
  4. Extend the Remaining Partition.
  5. Confirm Changes.


Merging two partitions in Windows 11 is a straightforward process if you follow the right steps. First, you’ll need to back up your data to make sure nothing important is lost. Then, you use Disk Management to delete one partition and extend the other. While the built-in tools are quite effective, they do have limitations, such as data loss on the deleted partition.

If you’re not comfortable using Disk Management or if you need more advanced features, there are several third-party tools available that can make the process easier and even preserve your data. However, these tools often come with their own set of risks and costs.

By carefully following the steps outlined in this guide, you can successfully merge two partitions and make better use of your disk space. Whether you’re looking to streamline your file organization or need more space for new programs, merging partitions can be a great solution.

Feel free to share this article with anyone who might find it useful, and happy partitioning!

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