Hard Drive Suddenly Became Unallocated…

Hard drive/external hard drive/USB drive becomes unallocated?

Have you ever encountered this issue?

What should you do if the unallocated partition contains some important data?

How to Recover Data After Windows Downgrade | Best Ways

This post will show you how to effectively recover unallocated partition with data on it.

What Does It Mean When a Hard Drive Is Unallocated?

Can someone like help me to recover it?

show Logical Drives and Devices

All of my data is in that partition.

yo, I need help.

You cannot use this space without allocation.

select specific file types

This means that no programs can be written in unallocated space.

However, what if this unallocated space contains massive important files?

In this case, you should try other ways to fix unallocated hard drive space.

select the whole disk to scan

Why Does Hard Drive/External Hard Drive/USB Flash Drive Become Unallocated?

What makes your drive becomes unallocated?

Many reasons can cause unallocated hard drives.

filter found files

Tip:If your hard drive becomes unallocated, you should stop writing new data to the drive.

Meanwhile, just use a professional recovery tool to start thehard drive data recoveryimmediately.

Otherwise, the original data on the unallocated space will beoverwritten.

save all needed files

Now, its time to learn how to fix unallocated hard drives without losing data in Windows 11/10/8/7.

In the following part, there are 2 excellent ways for you to get unallocated hard disk space back.

Lost files after downgrading Windows?

Users Folder Is Missing in Windows 11/10 | How to Restore It

This post offers you the best ways to recover data after Windows downgrade.

And, it has good compatibility.

To recover unallocated partition data, you’re able to get this software.

choose the partition the free space taken from

If yes, to complete the recovery operation, justupgrade to the Personal Edition.

Then clickOKto stash your parameters.

Now you might go to theDevicessection and clickScanto scan the whole disk.

How to Create Partition

Or it’s possible for you to choose the unallocated partition under theLogical Drivessection to scan.

Here, I guess you might be interested in this post:Solved - External Hard Drive Not Recognized.

Step 2: This data recovery software will start to scan the target disk.

click Partition Recovery

To ensure the best recovery result, hey wait patiently until the scan completes.

Note:Never save the needed files to the drive where you lost your data.

Otherwise, the lost/deleted files will be overwritten.

choose a scanning range

Now, get this software to have a try.

With MiniTool Power Data Recovery, I effectively recovered lost data without damaging the original data.

Users folder is missing?

select quick scan

Option 1: How do I add unallocated space to an existing partition?

Download and launch MiniTool Partition Wizard.

MiniTool Partition Wizard FreeClick to Download100%Clean & Safe

Step 2.

show partition’s folders

Select any existing partition, and then clickExtend Partitionfrom the left action panel.

Finally, clickApplyto perform changes.

Option 2: How do I create a new partition on the unallocated space?

check all needed partitions

Launch MiniTool Partition Wizard.

Step 2. go for the unallocated space, and then clickCreate Partitionfrom the left menu.

Then clickOKto go back to the main interface of the software.

change a drive letter

Finally, clickApplyto perform all changes.

Detailed tutorial on how to create a partition on Windows 10/8/7 with MiniTool Partition Wizard is explained here.

Here you could see a video tutorial to know how to recover unallocated space.

The following is how to recover unallocated partition with data on it.

Step 2: ClickPartition Recoveryfrom the top action panel.

Step 3: grab the target disk you want to recover and clickNext.

it’s possible for you to clickFull Diskto scan the whole hard drive.

Step 5: Set a scanning method likeQuick Scanto scan the specified range and clickNextto continue.

Step 6: Wait for the scan process to complete.

Then double-click each found partition to verify if it contains the lost files you want.

Step 7: Select all needed partitions including existing partitions and deleted/lost partitions, and then click theFinishbutton.

Warning: You Must Check All Partitions You Want.

Otherwise, the unchecked ones will be deleted after partition recovery.

Step 9: Click theApplybutton in the lower left corner to perform all changes.

It is very easy to recover unallocated partition with data on it, isnt it?

Related post:Can You Recover Data from an Unallocated Hard Disk Space?

I effectively recovered data from unallocated hard drive space with MiniTool Partition Wizard.

Now, you might try the above-mentioned two methods to recover unallocated partition with data in it.

Share it to help more users get rid of the unallocated space error!