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Unallocated Disk on Windows 10: 6 Ways to Access it

Easy expert solutions to resolve the problem

7 min. read

Updated onOctober 4, 2023

updated onOctober 4, 2023

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Key notes

If you are a Windows 10 user and have recently encountered the issue of an unallocated disk, you’re not alone. Unallocated disk space can be frustrating and prevent you from accessing your files and data.

This guide will explore the causes of unallocated disk space in Windows 10 and provide solutions to help you recover your lost data and fix the problem. So, if you are facing this issue, keep reading to learn how to resolve it and get back to using your computer usually.

Why is my disk 2 unallocated?

Why is my disk 2 unallocated?

The issue of an unallocated disk 2 can occur due to various reasons, including:

What are other disk allocation issues?

If your second hard drive is unallocated, you might be unable to access it properly. But, of course, this isn’t the only problem with unallocated space, and speaking of issues, here are some similar problems that users reported:

How can I fix the unallocated disk on Windows 10?

How can I fix the unallocated disk on Windows 10?

1. Use a professional partition manager software

Allocating drives manually can make you lose files. So, if you want to fix the problem with the unallocated hard drive, we advise you touse dedicatedsoftware.

True, Windows has tools for creating, deleting, and resizing partitions. However, to find an unallocated hard disk, you may need to go the extra mile and usepartition manager softwarespecializing in this task.

For a good reason, many users believe that third-party tools like AOMEI Partition Assistant make such tasks easier since they do not have constraints as a native partition manager.

This software contains over 30 great-worth features to help you enhance your hard disk partition’s performance.

AOMEI Partition Assistant

Users claim that this method won’t delete any files from the unallocated drive, but we advise you to back them up to be safe. However, many users reported that these tools helped them with this problem, so we strongly suggest you try them.

2. Use Disk Management

If you just installed a second hard drive and get a message that your hard drive is unallocated, you need to create a new volume using the Disk Management tool. This built-in tool in Windows allows you to manage your hard drives and partitions.

Remember that this method will cause file loss, especially if you already have files on your hard drive, so use it at your own risk. However, if you purchased a new hard drive, then feel free to use this method to format it and set it up.

3. Update your drivers

According to users, if the second hard drive is unallocated, perhaps the issue is related to your drivers. Missing drivers can sometimes cause this problem to appear, and to fix the issue; it’s advised to download and install these drivers.

Many users reported that this problem appeared because Virtual Disk Driver wasn’t installed. To fix this problem, visit your hard drive manufacturer’s website and download the latest drivers for your hard drive.

After you install Virtual Disk Driver, you should be able to assign the drive letter to the partition and access your files. Remember that this solution worked forSeagatehard drives but might also work for other brands.

If you don’t want to download the drivers manually, you can use a third-party tool to update all your drivers with just a few clicks automatically.

⇒Get Outbyte Driver Updater

4. Use Command Prompt and diskpart command

According to users, if your second hard drive is unallocated, you might be able to fix the problem by using the diskpart command. However, remember that diskpart is a powerful tool, so it might cause you to delete all your files if you’re not careful.

Pay attention to the size of the volumes, and be sure to select the volume with unallocated space. If you choose the wrong volume, you might cause unexpected file loss.

After doing that, start Disk Management and try to create a new volume. If Disk Management can’t make a new volume, start diskpart again and repeat the same commands. However, this time be sure to rundelete volume overrideafterdelete volumecommand.

5. Reinstall the hard drive driver

Doing so will install the default driver, and the problem should be resolved.

Sometimes, your hard drive can become unallocated due to a bad driver. Your driver can get corrupted, causing this problem to appear. However, you can fix the issue by reinstalling the hard drive driver.

6. Change the drive letter

If you’re having problems with an unallocated disk on Windows 10, perhaps you can fix the issue simply by assigning a letter to that drive. This is incredibly simple, and you can do it right from the Disk Management tool. To do that, follow these steps:

After doing that, the problem should be resolved, and you can access your drive.

Problems with an unallocated hard drive can cause various issues, such as the inability to access your files, and if you’re having this issue, you should be able to fix it with one of our solutions.

More about the topics:Fix Hard Drive issues,windows 10 fix

Milan Stanojevic

Windows Toubleshooting Expert

Milan has been enthusiastic about technology ever since his childhood days, and this led him to take interest in all PC-related technologies. He’s a PC enthusiast and he spends most of his time learning about computers and technology.

Before joining WindowsReport, he worked as a front-end web developer. Now, he’s one of the Troubleshooting experts in our worldwide team, specializing in Windows errors & software issues.

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Milan Stanojevic

Windows Toubleshooting Expert

Before joining WindowsReport, he worked as a front-end web developer. Now, he’s specialized in Windows errors & software issues.