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How to wipe a hard drive

Whether you’re selling your computer or need more storage, knowing how to clear a hard drive is essential. Windows and macOS have handy built-in tools to format internal and external hard drives efficiently and securely. 

In this guide, we'll walk you through the simple steps to clear a hard drive. If you need speedy digital storage to keep up with your intensive requirements, you can check out our list of the fastest external SSDs

Tools and requirements

  • Windows or Mac computer
  • External storage

Steps for how to clear a hard drive on Windows 11

  • Press Windows + E to open the File Explorer. 
  • Click This PC. 
  • Right-click the hard drive you want to clear. 
  • Click Format. 
  • Click Start. 

Step by step guide to clear a hard drive on Windows 11

The steps for clearing internal and external hard drives are the same, but below, we only demonstrate steps to clear a hard drive that doesn’t have Windows installed on it. To clear a hard drive with Windows installed on it, read our guide on how to factory reset a computer

1. Launch File Explorer > This PC

A screenshot of the File Explorer on Windows 11, with a red arrow pointing at This PC.

Start by pressing Windows + E to launch the File Explorer. On the left-hand panel, click This PC

2. Right-click the hard drive you want to clear

A screenshot of the File Explorer on Windows 11, with red arrows pointing at a hard drive and at the Format option.

Right-click the drive you want to clear and click Format. If you want to clear an external hard drive, ensure it’s connected to the computer. 

3. Tick/Untick the Quick Format box and click Start

A screenshot of the File Explorer on Windows 11, with red arrows pointing at the Quick Format option and the Start button in the hard drive formatting window.

Tick or untick the Quick Format box based on your requirements. 

Unticking the Quick Format box will ensure the drive is thoroughly wiped (data is overwritten), and although it’s more secure, it takes time. A quick format will swiftly clear the drive for you, but it won’t overwrite your data like the previous method, making it less secure. 

Related video: Are You Using the WRONG Type of Hard Drive? (Viral Tech)

Once you’re ready, click Start

Steps for how to clear a hard drive on macOS

  • Launch Disk Utility. 
  • Click the hard drive (left sidebar).
  • Click Erase. 
  • Choose a Format and Security Options.
  • Click Erase and then click Done. 

Step by step guide to clear a hard drive on macOS

Below, we only demonstrate steps to clear an external hard drive on macOS. To clear internal hard drives on your Mac, read our guide on how to reset a Mac.

1. Launch Disk Utility

A screenshot of the Disk Utility app icon on macOS.

Launch the Disk Utility app after connecting the external storage to your Mac. 

2. Select the hard drive and click Erase

A screenshot of the Disk Utility app on macOS, with red arrows pointing at the hard drive's name and the Erase button.

Click the hard drive under External in the left sidebar. Then, click Erase, which is towards the top right. 

3. Choose a Format and Security Options > Erase

A screenshot of the Disk Utility app on macOS with arrows pointing at the Format dropdown, Security Options, and Erase button in the Erase menu for the hard drive.

Select a Format and Security Options to decide between a swift erase or a slow but secure wipe that can’t be recovered. 

Once ready, click Erase and then click Done

Final Thoughts

Clearing your hard drive is an effective way to ensure your data is securely wiped. Along with creating more room for your files, the additional storage can add an impressive boost to your system (or storage device) for optimal performance. 

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