How To Use A USB Flash Drive: Mac & Windows - WikiHow

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Terms of Use wikiHow is where trusted research and expert knowledge come together. Learn why people trust wikiHow Easy Ways to Use a USB Flash Drive PDF download Download Article Co-authored by Chiara Corsaro and Darlene Antonelli, MA

Last Updated: February 19, 2026 Fact Checked

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This article was co-authored by Chiara Corsaro and by wikiHow staff writer, Darlene Antonelli, MA. Chiara Corsaro is the General Manager and Apple Certified Mac & iOS Technician for macVolks, Inc., an Apple Authorized Service Provider located in the San Francisco Bay Area. macVolks, Inc. was founded in 1990, is accredited by the Better Business Bureau (BBB) with an A+ rating, and is part of the Apple Consultants Network (ACN). This article has been fact-checked, ensuring the accuracy of any cited facts and confirming the authority of its sources. This article has been viewed 857,732 times.

Do you have a flash drive, but aren't quite sure how to use it? They are portable storage devices that can be accessed on virtually any computer. This wikiHow article shows you step-by-step how to plug a USB flash drive into your computer and use it.

Things You Should Know

  • Your computer should open your USB flash drive's contents as soon as you plug it in and the computer discovers it.
  • If you're using a Mac, double-click the drive on your screen to see your flash drive's contents.
  • If you're using Windows, go to "File Explorer" and click your drive's name in the panel on the left.

Steps

Method 1 Method 1 of 2:

Using a Mac

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  1. Step 1 Plug the drive in any available USB port. 1 Plug the drive in any available USB port. Wait a few moments while the computer automatically sets the drive up to be accessed.
    • If the flash drive has been formatted using the NTFS filesystem, then it will not be recognized in Mac OS X. The flash drive must be formatted in the FAT32 filesystem.[1]
    • This means that a USB drive that you used on a Windows computer cannot be used to transfer files or music to a Mac unless it's formatted in the exFAT filesystem.
  2. Step 2 Wait for the drive to appear. 2 Wait for the drive to appear. Once the drive is successfully installed, it will appear on your desktop. You can double-click it to open it and browse the files as you would any folder on your system.[2] Advertisement
  3. Step 3 Copy and paste or click and drag files and folders onto the drive. 3 Copy and paste or click and drag files and folders onto the drive. Once the transfer process is complete, you can remove the drive from the computer.[3]
    • To safely eject your drive from your Mac, make sure the trash is empty, then click the eject icon next to your drive's name in Finder. When your USB flash drive stops blinking, your Mac has stopped using it and ejected it. You can remove it from the port.[4]
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Method 2 Method 2 of 2:

Using Windows

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  1. Step 1 Find a USB port. 1 Find a USB port. On laptops, they are typically located on the sides or on the back panel. For desktop computers, most have front ports, as well as several ports on the backside. The front ports may be hidden by a flap.[5]
  2. Step 2 Insert the USB drive into the port. 2 Insert the USB drive into the port. If you plan to use it frequently, insert it into the front port for accessibility reasons.[6]
    • You shouldn't try to force it in. Generally, USB drives insert one way, so if it doesn’t fit, try turning it upside down. When you insert the flash drive, Windows will install the drivers for it automatically. You will see notifications about this in the bottom right corner of the desktop.
    • NOTE: If Windows isn't able to identify the device or install the drivers automatically, you may either visit the manufacturer's webpage for the appropriate driver (it is often located in the support or download section of the website) or visit the Windows Compatibility Center which lists thousands of devices and links to their respective webpages.
    • Unless it has been disabled, the Autoplay window will open when you insert your USB drive. It will list several options depending on what is stored on the flash drive. The most common one is “Browse files…”
    • If it doesn't, press Win +E to open File Explorer. This will list the devices attached to your computer in the panel on the left side of the window. You should see your USB flash drive here. It is often named for the manufacturer of the drive. Double-click it to open the drive.[7]
    • If you don't see the drive, try moving it to another USB port on your computer. The port you're currently using might not be working. If it still doesn't work in a different USB port, test it with another computer to see if your drive is working. You'll know your drive is bad if another computer doesn't locate it.
  3. Step 3 Find the file you want to copy. 3 Find the file you want to copy. Then, navigate to the file(s) you want to copy to the flash drive. You can either copy and paste them to the flash drive, or click and drag them.[8]
  4. Step 4 Wait for the transfer to complete. 4 Wait for the transfer to complete. This could take several minutes depending on what you are copying. Once the transfer is complete, you can remove your flash drive.[9]
    • Since Quick Removal is usually the default setting on most Windows 10 computers, you can easily remove the USB flash drive from your computer without needing to click anything. Just make sure nothing is being copied to or from the flash drive before pulling it out.
    • To remove the USB Flash Drive safely if you have "Quick Removal" off, click "^" in the taskbar and click your USB icon then click "Eject."[10]
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Expert Q&A

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  • Question What should I do if the USB doesn't show up on the computer? Chiara Corsaro Chiara Corsaro Computer Specialist Chiara Corsaro is the General Manager and Apple Certified Mac & iOS Technician for macVolks, Inc., an Apple Authorized Service Provider located in the San Francisco Bay Area. macVolks, Inc. was founded in 1990, is accredited by the Better Business Bureau (BBB) with an A+ rating, and is part of the Apple Consultants Network (ACN). Chiara Corsaro Chiara Corsaro Computer Specialist Expert Answer It never hurts to try multiple ports. Ports get damaged all the time and your computer almost certainly has multiple USB ports, so I'd give that a shot first. Thanks! We're glad this was helpful. Thank you for your feedback. If wikiHow has helped you, please consider a small contribution to support us in helping more readers like you. We’re committed to providing the world with free how-to resources, and even $1 helps us in our mission. Support wikiHow Yes No Not Helpful 16 Helpful 8
  • Question How do I get my flash drive to work? Chiara Corsaro Chiara Corsaro Computer Specialist Chiara Corsaro is the General Manager and Apple Certified Mac & iOS Technician for macVolks, Inc., an Apple Authorized Service Provider located in the San Francisco Bay Area. macVolks, Inc. was founded in 1990, is accredited by the Better Business Bureau (BBB) with an A+ rating, and is part of the Apple Consultants Network (ACN). Chiara Corsaro Chiara Corsaro Computer Specialist Expert Answer If you can't access your flash drive and it's plugged in, it's possible that it's not compatible with your system. This often happens with Apple devices, there's an adapter that you'll often to need to connect certain kinds of drives to your computer. Thanks! We're glad this was helpful. Thank you for your feedback. If wikiHow has helped you, please consider a small contribution to support us in helping more readers like you. We’re committed to providing the world with free how-to resources, and even $1 helps us in our mission. Support wikiHow Yes No Not Helpful 12 Helpful 12
  • Question Can I delete files on a flash drive? Community Answer Community Answer Yes. Start by right clicking the drive, and then clicking on "format" or "open" the drive. Right click on the file you wish to delete, and click on "delete." Thanks! We're glad this was helpful. Thank you for your feedback. If wikiHow has helped you, please consider a small contribution to support us in helping more readers like you. We’re committed to providing the world with free how-to resources, and even $1 helps us in our mission. Support wikiHow Yes No Not Helpful 17 Helpful 59
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Tips & Warnings

  • Devices like phones and tablets usually don't have the ports or hardware to use flash drives. Many phones and tablets use SD cards instead.
  • Do not remove the flash drive while you're writing files.
  • Do NOT use a flash drive when your laptop's battery is low.

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References

  1. https://support.apple.com/guide/disk-utility/erase-and-reformat-a-storage-device-dskutl14079/mac
  2. https://support.apple.com/guide/mac-help/connect-storage-devices-mac-mchl027f1d66/mac
  3. https://support.apple.com/guide/mac-help/connect-storage-devices-mac-mchl027f1d66/mac
  4. https://support.apple.com/guide/mac-help/connect-storage-devices-mac-mchl027f1d66/mac
  5. https://edu.gcfglobal.org/en/windowsbasics/working-with-flash-drives/1/
  6. https://edu.gcfglobal.org/en/windowsbasics/working-with-flash-drives/1/
  7. https://support.microsoft.com/en-us/windows/find-and-open-file-explorer-ef370130-1cca-9dc5-e0df-2f7416fe1cb1
  8. https://edu.gcfglobal.org/en/computerbasics/bringing-your-files-with-you/1/
  9. https://edu.gcfglobal.org/en/computerbasics/bringing-your-files-with-you/1/
More References (1)
  1. https://support.microsoft.com/en-us/windows/safely-remove-hardware-in-windows-1ee6677d-4e6c-4359-efca-fd44b9cec369

About This Article

Chiara Corsaro Co-authored by: Chiara Corsaro Computer Specialist This article was co-authored by Chiara Corsaro and by wikiHow staff writer, Darlene Antonelli, MA. Chiara Corsaro is the General Manager and Apple Certified Mac & iOS Technician for macVolks, Inc., an Apple Authorized Service Provider located in the San Francisco Bay Area. macVolks, Inc. was founded in 1990, is accredited by the Better Business Bureau (BBB) with an A+ rating, and is part of the Apple Consultants Network (ACN). This article has been viewed 857,732 times. How helpful is this? Co-authors: 29 Updated: February 19, 2026 Views: 857,732 Categories: External Storage Devices In other languages French Spanish German Portuguese Italian Chinese Russian Dutch Arabic Hindi Japanese
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