How to un-write protect a disk

Written by alex lubyansky
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Write protection serves the valuable function of securing the data of a disk drive. With write protection enabled, files cannot be modified on a disk drive. Yet you may wish to modify some files on such a drive. In this instance, you can easily disable the write protection of a disk by using the built-in functionality of Microsoft Windows operating systems.

Skill level:
Moderately Easy


  1. 1

    Physically unlock the disk. Just like floppy disks have a physical lock, some modern disk drives contain such a feature. Locate the lock on the disk and place it into the unlock position.

  2. 2

    Plug your disk into your computer. Turn your computer on. Click "Start."

  3. 3

    Type "Regedit" into the search box and hit "Enter." Type "HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\StorageDevicePolicies" and hit "Enter." Double click "WriteProtect." Go to the "ValueData" box and type in "0." Click "OK." You have removed write protection from your disk.

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