Remove Write Protection from USB Pen Drive or Memory Card or Thumb Drive

Some times your USB thumb drive or pen drive may face this weired problem, although the drive seems normal and is being detected by the OS, yet it shows the drive is write protected when you try to put some data on it. It can be because of physical errors in the drive or may be because of just some misconfiguration.

Common causes:

  • flash drive removal without using “safely remove hardware” or ejecting drive (OS X/Linux/Windows 7)
  • Unplugging the flash drive while data is being written to the drive

Common errors are:

  •  “unable to access”
  •  “track 0 error”
  •  “write protection”
  •  “Size is 0 byte” or “RAW file system”

Here are few tips you can follow when you face such situations:

Regedit Method:

-run “regedit” command
-find “HKEY_LOCAL_MACHINE/System/Control/StorageDevicePolicies/
-Double click at “Write Protect”
-Change the value to “0”


HP Drive Key Boot Utility Method:

Download and Install HP Drive Key Boot Utility :

It should work for most brands of flash drives.


Also check if your drive has write protect notch some where, toggle it then try to format it again.

I hope this would solve your problem. 🙂



If both of the above solutions didn’t work for your drive, then you can try the following:

  • Download Apacer Low Level Formatter.
  • Remove all other USB thumb drives USB Hard Disks etc and attach only the Drive with problem.
  • Unzip and run: Repair_v2.9.1.1.exe
  • It will detect the USB drive and start low level format on the drive. It could take a while, just wait.
  • After the low level format if over, you can normally format the drive and use it as normal. While formatting uncheck “Quick format” option.

Warning: Low Level format will completly distroy any data on drive, So take backup from the drive before using this tip.


19 responses to “Remove Write Protection from USB Pen Drive or Memory Card or Thumb Drive”

  1. thanks a lot yesterday i purchased a hp 4 gb pen drive and got a write protected error… with the help of this software i got the solutions………thanks again

  2. Thanks bro you are a gnius
    you helped out from abig problem
    i saved my 2 pendrives both were write protected thanks a lot thanks alot
    if u need any help from me
    i mean anything i’ll help u out

  3. hi guys i had a problem with my USB pendrive
    when i want to copy from it,it,ok
    but when i wana do format an error coming like your drive in write protected mode
    and also coming the another removable disk with size 32 gb
    can you give me a sloutio plz…it is a transcend company product

  4. i have done this tip but its dose not work same problem occur my pen drive dose not format or dose not write tell me another tip plezzzzzzzz tell me soon

  5. Thanks a lot. I was tried to remove write proection of USB from last 3 month ..u had really help me to remove erite protection..thanks a looooooooooooooooot.

  6. hey i have tried this website
    my problem was solved
    my pen drive write protection was now cleared
    (only for Transend users)

    its true..

  7. i have 4gb pd,
    i m nt able to format it,
    the errore is write disk protector,
    please tell me i m in big tenssion dude
    how can i repaire my pd..
    plz mail me

  8. -run “regedit” command-find “HKEY_LOCAL_MACHINE/System/Control/StorageDevicePolicies/-Double click at “Write Protect”-Change the value to “0″

    i have try all these steps but still not working

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