Deleted My Partitions by Mistake While Installing Windows 7

When installing Windows 7 on my computer, I accidentally deleted partitions on my 4 TB HDD. I can see some files on my HDD with TestDisk, but I failed to access the data in Windows File Explorer with a warning, 'You need to format the disk before using it.' How can I recover data from the HDD?

Best Answered by

Dany· Answered on Mar 09, 2023

You cannot access the partition on HDD with TestDisk may because it has done an MBR conversion. Select "Reset GPT + MBR signatures" from the context menu when you right-click the first line, "Disk 2(Your HDD)". To see "GPT" on the first line rather than MBR, you might need to toggle GPT Off and On again. The NTFS partition should thereafter be able to be added at that point. If you cannot get what you want with TestDisk, you can try to use a partition recovery tool to recover lost partitions or recreate the partitions after recovering data.

EaseUS Data Recovery Wizard is a helpful tool to recover data from lost partitions on HDD. This tool will help you recover all files from your lost HDD partitions, including emails, documents, audio, videos, etc. No matter whether the data was lost on HDD, SSD, external hard drives, memory cards, or SD cards, this tool will help you recover the lost data.

1. The first thing after launching EaseUS Data Recovery Wizard is scanning the lost partitions. This step allowed users to scan the lost partitions quickly or deeply. Scanning a 4TB HDD will take a while.

2. You can select the files while scanning the HDD. If you want to recover photos only, you can choose "Pictures" from the Filter option.

3. Recovering files to another hard drive by clicking "Recover".

After recovering data from your HDD, you can follow the prompts to format your HDD to use it. In most cases, when a partition is destroyed or deleted, the system also deletes the hard disk assignment for that area, allowing the memory segment to be replaced as necessary. There is still a possibility to utilize the recovery tool to recover deleted partitions as long as this portion of the disk is unaltered. You'd better back up your HDD regularly with backup software or enable Windows File History to avoid data loss.

Use EaseUS Data Recovery Wizard to recover deleted or lost files easily and quickly.

Tutorials on how to recover lost, deleted, or formatted data from HDD, SSD, USB, SD card, or other storage media on Windows and Mac.

People Also Ask

How to Recover Deleted Files on Mac Without Software [macOS Ventura]

How can lost files on a Mac be recovered without the software? Following this guide, learn the methods for recovering deleted files on a Mac. We wholeheartedly endorse EaseUS Data Recovery for Mac users who want to recover deleted files successfully!


Mar 10, 2023

Hard Drive Partition Size Shown But Data Not There

It has been 8 days since you encountered hard drive issues. We hope your data haven't been overwritten yet. You should check the following explanations and use our recommended data recovery software.


Mar 09, 2023

Recover Files After Windows 8 Reset on PC

Can you recover files after restoring Windows OS to factory settings? Stay calm when you lost precious data due after Windows 8 factory reset. With a capable Windows 8 data recovery tool, by following some important tips, successful file recovery is possible after resetting Windows 8 on a PC/laptop to its original state.


Feb 27, 2023

How to Recover Deleted 400GB Files from Local Disk

This post has offered solutions with or without software to recover deleted 400GB files from the local disk. You can acquire solutions here if you accidentally deleted your files and want to get them back.


Apr 19, 2023

How to Delete Files When Program Closes Automatically [BAT File]

It is too troublesome to manually delete these files every time, and maybe you can try to make a BAT file and delete them automatically. We will show you how to do that in this article.


Feb 22, 2023

How to Recover Deleted Emails Message in Outlook 365 [Microsoft Tips]

Suppose you wish to recover deleted emails that you hard erased (or, more precisely, permanently deleted) from Microsoft Outlook 2016, 2013, or any other Outlook version. Breathe easily. Outlook's Deleted Items folder and the email recovery program EaseUS Data Recovery Wizard both allow you to retrieve deleted emails.


Mar 10, 2023