How to Save Files to a USB Flash Drive

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This wikiHow teaches you how to move, save, and download files onto a USB flash drive plugged into your computer.

1. Plug your USB drive into you computer.
2. Open your computer's file explorer.
3. Select your desired file on your computer.
4. Copy and paste (CTRL + C) or right click on the file and select "Copy."
5. Click on the USB drive in your file explorer.
6. Paste (CTRL + V) the file onto the drive.

Identifying and Attaching Your USB Flash Drive

Locate your computer's USB port. If you have a laptop, the USB ports are probably on the left or right side of the housing. Desktop users may find the USB ports on the back or the front of the desktop tower, though iMacs have the USB ports on the back of the monitor itself.

• USB 3.0 — A thin, rectangular slot that's about 3/4 of an inch (a little under two centimeters) wide. You should see a chunk of plastic in the upper half of this slot. USB 3.0 slots are found on the majority of Windows computers and on most Mac computers manufactured prior to 2016.
• USB-C — A thin, oval slot that's about 1/2 of an inch (a little over a centimeter) wide. These are most commonly found on MacBook and MacBook Pro computers, though some Windows laptops also have USB-C ports.
• If your computer has both types of port, you're free to use whichever port you like depending on your USB flash drive type.

• If the connector is rectangular and has a piece of plastic taking up part of the connector, you have a USB 3.0 flash drive.
• If the connector is oval and has no piece of plastic inside of it, you have a USB-C flash drive.

• This is most common on MacBooks and MacBook Pros from 2016 and up, though some Windows computers also have only USB-C ports.

• USB-C flash drives can be inserted either way.
• If you're using a USB-C adapter, you'll plug your USB flash drive into a USB 3.9 slot in the adapter instead.

Copying Files to the USB Flash Drive on Windows

Make sure your USB flash drive is plugged in. If your flash drive isn't plugged into your computer, plug it in before proceeding.

• If you want to copy multiple files, hold down Ctrl while clicking each file you want to copy.

• If you don't see your flash drive's name, click This PC near the top of the left-hand pane, then double-click your flash drive's name in the "Devices and drives" section.

• If you want to paste the file(s) inside of a specific folder inside of your flash drive, double-click the folder before pasting in the files.

Click the flash drive-shaped icon in the lower-right corner of the screen (you may first have to click

Remove the USB drive. After ejecting the drive, you can pull it out of your computer by gently tugging on it.

Copying Files to the USB Flash Drive on Mac

Make sure your USB flash drive is plugged in. If your flash drive isn't plugged into your computer, plug it in before proceeding.

• If you want to copy multiple files, hold down ⌘ Command while clicking each file you want to copy.

Open your flash drive. Click your flash drive's name in the lower-left side of the Finder window. You'll find it under the "Devices" heading.

• If you want to paste the file(s) inside of a specific folder inside of your flash drive, double-click the folder before pasting in the files.

Open Finder, then click the "Eject"

Remove the USB drive. After ejecting the drive, you can pull it out of your computer by gently tugging on it.

Saving Files Directly to a USB Flash Drive

Make sure your USB flash drive is plugged in. If your flash drive isn't plugged into your computer, plug it in before proceeding.

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• Skip this step if you just want to create a copy of the file on your flash drive.

• Windows — Click File, then click Save As. If you're using Microsoft Office, double-click This PC after clicking Save As to bring up the File Explorer.
• Mac — Click File, then click Save As. in the resulting drop-down menu.

Name your document if necessary. If you want to add a different name to your file, type it into the "File name" (Windows) or the "Name" (Mac) text box.

• On a Mac, you may have to click the Where drop-down box and then click your flash drive's name either in the drop-down menu or on the left side of the Finder window.

Click Save . It's in the bottom-right corner of the window. This will cause your file to save onto your flash drive.

Windows — Click the flash drive-shaped icon in the lower-right corner of the screen (you may first have to click

Remove the USB drive. After ejecting the drive, you can pull it out of your computer by gently tugging on it.

Downloading Directly onto a USB Flash Drive

Make sure your USB flash drive is plugged in. If your flash drive isn't plugged into your computer, plug it in before proceeding.

Open your preferred browser. If you want to download a file from the Internet onto your USB flash drive, open a web browser (e.g., Chrome).

• Chrome — Click ⋮ in the top-right corner, click Settings, scroll down and click Advanced, scroll down to the "Downloads" section, and click the "Ask where to save each file before downloading" switch if it's grey.
• Firefox — Click ☰ in the top-right corner, click Options (or Preferences on a Mac), scroll down to the "Files and Applications" section, and check the "Always ask you where to save files" box.
• Edge — Click ⋯ in the top-right corner, click Settings, scroll down and click View advanced settings, and click the grey "Off" switch in the "Ask me what to do with each download" section (if the switch is blue, you're set).
• Safari — Click Safari in the top-left corner, click Preferences. , click the "File download location" drop-down box, and click Ask for each download in the drop-down menu.

Go to the file you want to download. In your web browser, navigate to the page or service from which you want to download a file.

Click the Download button or link. This will vary depending on what you want to download. Indicating that you want to download a file will prompt a pop-up window to open.

• On a Mac, you may click Choose instead of Save.
• If you want to save a file inside of a specific folder inside of your flash drive, double-click the folder before clicking Save.

Windows — Click the flash drive-shaped icon in the lower-right corner of the screen (you may first have to click

Remove the USB drive. After ejecting the drive, you can pull it out of your computer by gently tugging on it.

Troubleshooting a USB Flash Drive

• You can quickly clear a drive of files by dragging the files in question into your computer's Recycle Bin (Windows) or Trash (Mac).

Check the size of the file you are trying to transfer. Many USB drives cannot store files larger than 4 GB. If you need to transfer files larger than this, you'll have to format the USB drive with a different file system. See the next step for details.

• If you want to store files larger than 4 gigabytes, select exFAT (Windows) or ExFAT (Mac).
• Flash drives formatted for Windows-only use aren't compatible with Mac computers, and vice versa. Formatting the flash drive for a compatible format will fix this issue.

Community Q&A

Can I add more files to a flash drive that is already holding information, or do I have to format it first?

It depends. If your flash drive has enough space to support more information, then you do not need to format it first. You can just keep adding files to it until it runs out of space. If the information to be added does exceed the storage capacity, you will need to remove some files first, or format the drive to completely remove all existing files.

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Yes, you can. USB drives are not like DVDs. You can keep adding files to a USB drive until you run out of space. You can also delete files from your USB drive that you no longer need.

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Open the Start Menu, click Computer in the right hand pane, and the drive should show up in the Computer Explorer window that opens. It could have various names, but it will be something other than drive C: and the DVD drive. If it doesn't show up, it may have formatting or other issues and the computer isn't reading it.

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