How to Resolve Hard Drive Space Disappeared After Partition Shrink

How to Resolve Hard Drive Space Disappeared After Partition Shrink

Has your hard drive disappeared after partition shrink? You have no clue what brought you in this situation. No worries, you can allocate the hard drive in no time. Just follow the guide below.

Jul 20, 2020 • Filed to: Answer Hard Drive Problems • Proven solutions

Q: How to resolve the issue of hard drive space disappeared after partition shrink?
“I am not an expert on handling hard drives, yesterday I was allocating space while creating a new volume from unallocated hard drive partition. As, I was performing this task, my drive partition disappeared. I have no idea about what went wrong with my 1TB hard drive. Is there any way to recover unallocated partition in windows 10? If yes, I certainly want to acknowledge them and the reasons behind this issue.”

People all around the world are using hard drives as main storage media. Some people don’t know that the manufacturer considers 1TB as 1000 GBs but your operating system shows only 931 GB. People think that the other 69 GB is wasted, but you can actually utilize that space by shrinking. If you fail in the procedure and your hard drive space disappears, no need to stress yourself. You can solve this problem just by following the methods mentioned in the guide. Follow the guide carefully to get all the fixes and the causes of this issue.

Part 1: Why hard drive space disappeared after partition shrink?

If you are not aware with the causes of any problem, you certainly can’t solve it properly. Same is the case with the disappearing of hard drive space issue, you need to know all the possible reasons behind this problematic situation.

Here are some common factors;

Part 2: What takes up the missing space?

Now, that you have known the reasons of your issue. You must be wondering that what actually takes up the missing space in the hard drive. Here are the 3 situations that cause windows missing space on hard drive;

1. Hidden partitions take up the space

There are computers and laptops which come with built-in hidden partitions. Partitions like OEM partition, recovery partition and Microsoft reserved partition. You can use disk management to witness these hidden partitions. Using disk management, you can also delete them, only if you have backed up your system.

2. Systems protection takes up much space

The system protection feature in the computer is there for regularly creating and saving information about the computer’s file system and settings. In doing so, it creates restore points, which results in taking up much space. To view the data, check the “system volume information”.

3. There is unpartitioned hard disk space

You can only witness the partitioned space with your windows explorer, as partitions are made to utilize the space in the hard disk. some of the space is left unpartitioned which causes the missing space, it can be viewed in the disk management.

Part 3: How to recover the unallocated space manually?

Acknowledging that what takes up the missing space in the hard drive is not the whole answer, you need to know ways to recover the missing space, so you can utilize the real capacity of the hard drive.

Here are the two finest methods to do so;

Method 1: Run System File Checker

If the causes of your issue “disappearing of hard drive space after partition shrink” is corrupted or missing system files. You can surely use this method to get out of this problem. The system file checker is a tool provided by the windows that can detect and repair the corrupted or missing system files.

To use system file checker (SFC) follow these steps;

Step 1: Open the search bar or press “Windows+Q” to open it.

Step 2: Type CMD in the search bar.

Step 3: Press “Control+Shift+Enter” to run CMD as administrator.

Step 4: lastly, type sfc/scannow to run the system file checker’s scanning procedure.

sfc scan

Step 5: if the system scans any trouble with the system files, it can ask for windows media to repair the system files.

Method 2: Run ‘Chkdsk’ command

If the system file checker does not scan any corrupted or missing files, this method can help you out. Chkdsk is a built-in utility given by windows, you can use it to scan hard drive’s partition and internal errors, it will automatically resolve them. Chkdsk can repair the file system metadata and logical file system error, which corrupt the partition and cause them to disappear.

Follow these steps to Run ‘Chkdsk’ command;

Step 1: Open windows search bar, type CMD and press ‘control+shift+enter’.

Step 2: Click yes to open CMD as administrator.

Step 3: Type the command chkdsk X:/f, ‘X’ is the hard drive partition letter.

check disk command

Step 4: Press enter and wait for chkdsk to scan and repair the disk errors.

Step 5: In the last step, restart your computer after the task is complete. Furthermore, try accessing your hard drive through windows explorer. If you are unable to access the drive, copy your data and format it using disk management tool.

Part 4: How to recover lost partition using recoverit?

If you delete a partition while shrinking or extending the volume on the hard drive, it erases the data on the particular hard drive. So, make sure you have made the back up of your valuable data. In situation where you were unable to create a backup of your data and accidentally deleted the partition, no worries, you can recover your data using the remarkable software mentioned below;


Recoverit Data Recovery is a professional data recovery tool, it is used for recovering data of more than 1000+ types. The software is capable of recovering data lost after the deletion of a partition on hard drive.

Step 1: Launch recoverit on Mac

First and foremost, task is to download and install the recoverit software on your Mac. Once it is installed, you can just double click the icon to run the application.

mac data recovery

Step 2: Select the device

Once the window appears. You need to select the drive under the “devices” option in front of you. Keep in mind that you select the drive on which you lost data due to accidental partition.

mac select folder recovery

Step 3: Scan the location

After you have pressed the tab of “start” the software will start the deep scanning process for your hard drive. You can even either pause or resume the scanning process.

mac scanning lost files

Step 4: Preview and recover files

Scanning process depends on the size of your lost data. After the process has been completed, you will be able to preview all the data you had lost when the partition was deleted. You can preview multiple types of data, may it be videos, pictures or audio. Now that you have detected all the vanished data, press the ‘recover’ option to restore all your data. Lastly, save your recovered data at the desired location.

mac photo recovery


When dealing with hard drive, first of all make sure that you have made backup of all your important data files. In this guide we’ve discussed the reasons behind the disappearance of hard drive space after partition shrink. Although, the methods mentioned above are efficient enough for getting you out of the problem but if in case, you have deleted or formatted the partition with data on it while shrinking it, you just need to use the astonishing Recoverit data recovery tool to restore the data with pleasure.

Theo Lucia

chief Editor

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