How to Make an USB Read-Only

Written by chang lin
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How to Make an USB Read-Only
Protect the contents in your USB drive by making the folder and files read-only. (Jeffrey Hamilton/Digital Vision/Getty Images)

If you want to protect the files and folders of your flash drive from being manipulated by unknown users, making your USB "Read-Only" is a secure option. Although the files can be opened and viewed, it can not be transferred outside of the flash drive folder, deleted or edited in any way. As your computer's system administrator, you can adjust the USB drive's read-only permissions with a few clicks of the mouse.

Skill level:
Moderately Easy


  1. 1

    Log on with your Windows administrator account. You will only be able to make a storage device or any file read-only if you have administrative privileges.

  2. 2

    Connect the USB drive into the USB port on the side or back of your laptop or desktop computer.

  3. 3

    Click "Start" and double-click on the "Computer" icon.

  4. 4

    Right-click on the USB drive and select the "Properties" option from the drop-down menu.

  5. 5

    Click on the "Security" tab and select the "Edit" option. Find the section "Write Attributes" and place a check mark next to the "Read-Only" option.

  6. 6

    Click on the "Apply" or "OK" button in the bottom right corner of the "Properties" window to save all your changes and make the USB drive have read-only attributes.

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