How to Format/Unlock Encrypted Hard Drive without Password in Windows 7/8/10?

January 4, 2019

How to format encrypted hard drive in Windows 7/8/10? The best free comprehensive disk manager - AOMEI Partition Assistant will show you how to remove BitLocker from encrypted internal or external hard drive easily without password.

The scenario

I have a hard drive protected by Bitlocker. Login, password and restore key are unknown. All I want to do is wipe the whole hard drive. I have no access to the drive when I try to boot from a Windows installation disc, since it asked for the restore key that I don’t have. Is there any way to format the whole drive and make it usable again?

Do you know about encrypted hard drive?

An encrypted hard drive is a hard drive using disk encryption to protect information from converting it into unreadable code that cannot be deciphered by unauthorized people. You can use the disk encryption software or hardware to encrypt every bit of data that stores on a disk. Starting with Windows Vista, Windows provides users a feature named BitLocker, which is a full disk encryption solution designed to protect data by providing encryption for entire volumes. It uses the AES encryption algorithm to encrypt whole hard drive.

Why format a encrypted hard drive?

In general, you cannot decrypt the encrypted hard drive if you forgot the password or restore key after you encrypted the entire hard drive. What should you do if you want to reuse the hard drive? Don’t worry if you have no idea. In this article, we will guide you to solve this problem. The only way to solve the encrypted hard drive is format encrypted hard drive properly.

How to format a BitLocker encrypted hard drive in Windows 7/8/10?

Here are two ways to format encrypted drives. One is unlock BitLocker drive from command prompt, the other is format/erase with AOMEI Partition Assistant Standard. You can refer to the instructions:

Solution 1: Unlock BitLocker encrypted drive from command prompt

1. Hit Win+R key, then type diskpart and press Enter.

2. Then input these commands below in turn:

  • list disk 

  • select disk n, where the n stands for the disk you want to format.

  • list partition

  • select partition n, where the n stands for the encrypted hard drive you want to delete.

  • delete partition override 

3. Type exit to close window. This will wipe all the data on the encrypted hard drive. Then you could create new partition on that drive again.

Solution 2: Format BitLocker encrypted HDD with AOMEI Partition Assistant Standard

AOMEI Partition Assistant Standard is a professional disk partitioning software, which helps you to figure out the best two solutions to format a encrypted hard drive. Format encrypted hard drive; delete partition and create partition on it.

Format encrypted hard drive directly

Here are the steps:

1. Free download the freeware, install and launch the program. Right click the BitLocker encrypted hard drive and choose Format Partition.

Format Partition

2. Select the file system for the encrypted HDD.

File System

3. Click Apply to format a BitLocker encrypted hard drive without key.

Apply Format

Then restart your computer, you will find the BitLocker has been removed.

Alternative to format BitLocker encrypted hard drive directly

There has another way: you have to delete all partitions on the encrypted HDD, then create a new partition on it, then you will find that you have already remove BitLocker from the encrypted hard drive. The steps are listed below:

1. Run the program, and click the encrypted hard drive and choose Delete Partition at the left hand.

Delete Partition

2. Select a method to delete the partition, hit OK.

Delete Way

3. Click Apply to unlock a BitLocker encrypted drive without password.


4. Then right click the BitLocker encrypted hard drive, select Create Partition.

Create Partition

5. Choose the proper file system for that partition, hit OK to continue.

File System

6. Press Apply to create a new partition without BitLocker encryption.

Apply Create Partition

After these ways to remove BitLocker from encrypted hard drive, you can use the hard drive now. Besides, AOMEI Partition Assistant allows you to do write protected removal for hard drive/USB drive/SD card, move partition, extend partition, create bootable media, etc. The Professional edition provides you more advanced functions like allocate free space, convert primary partition to logical, and so on.