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Write protection in pen drives

I am not able to delete files from my pendrive nor am i able to format. every time i try to delete or format, a window pops up saying that ur pendrive is write protected and asks to remove the write protection. as such i have not found any write protection enabling or disabling method. There is no write protection switch on it.please guide in this problem

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Re: Write protection in pen drives

could you mention the brand of the pen drive.
anyway for deleting the files . try this--> right click the file and click properties. now check you "read only" (ie. dis-select it ) and select file or folder is ready for archive.
now try to delete it.
hope it helps. and after knowing your brand and model of your pen drive more information can be given.


Posted on Jan 09, 2008

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I have a transcend 4GB pendrive. it has become write protected due to virus. how can i format it. i have tried many processes but can't get my pendrive formatted.pls help

Some usb keys or flash drives have a little switch thatlocks it & makes it read only. Try looking for something like this. Or youtry following these steps:

For USBdrives:

1. Open Start -> Run...
2. type diskmgmt.msc and press enter
3. right click on the partitin you want to format (where the leter and is)
4. select 'Delete Partition...' and confirm
5. right mose button in the same place and select 'Create partition'
6. select primary partition
6. select , file format, disk leter, label etc should be all right if youleave defaults.
7. click ok

This will recreat the partition and format it in proper way.

I hope this information will be helpful. Thank you for using FixYa!

Please vote if it helped you.

Jun 27, 2011 | Transcend 4GB JetFlash 110 USB 2.0 Flash...

1 Answer

How to delete files.. actually da whole pendrive to get back 4 gb pendrive space again..???

instead of deleting the files its better you format the pen drive. Formatting can be done by > my computer-> right click on pen drive> format >start.

Jun 10, 2011 | SanDisk Cruzer Micro 8GB USB 2.0 Flash...

1 Answer

My pen drive is write protected, unable to write or delete any file. Unable to format also. Transcend make 4 GB

1.Insert ur pendrive in port
2.goto run
3.type cmd
4.then go drive D:
5.type cacls pendrivepath: /p username:F

eg D:\>cacls I: /p Pawan:F Enter
7.then try to del or write file in pendrive
8.or email me on for other solutions

Nov 11, 2010 | Transcend 4GB JetFlash 110 USB 2.0 Flash...

2 Answers

My pendrive having the virus i want to format it but not format, pls help

If Windows will not format your device, download this tool.,64963-order,1-page,1-c,peripherals/description.html

Despite the fact that it's an HP product, it works on all USB pen drives.

Nov 07, 2009 | SanDisk 8GB microSDHC Memory Card with...

3 Answers

I removed my pendrive without safe remove and its next ady onwards i am not able to detect my pendrive can anybody suggest some remedy??

Assuming that you are using windows, go to drive management and see if the pendrive is detected.
If so, right-click on it and format it.
Or look for the HP USB Disk Storage Format Tool and use it.

Sep 19, 2009 | SanDisk Cruzer Micro 4GB USB 2.0 Flash...

2 Answers

I can't format my pen drive.

Click > Start > RUN > type "CMD" Then
Type "CHKDSK" and type o your Pendrive and "/F". Ex. chkdsk Q: /F > Enter
Ok, You see many msg error. OK!
Now, you remove your pendrive and plug again.
Try to format.
It works well.
Thank You

Aug 06, 2009 | Transcend (589307) Media

2 Answers


first insert your pendrive.Now right click on my computer.Go to manage option . select disk management. From that you must select your drive letter for your pen drive.Go to Action menu near to File menu.Fromthat select all tasks and select formatting.Then again goto all tasks and select change drive letter and the drive letter and your problem is solved. thanks for asking your problem.

Feb 03, 2009 | Transcend (589307) Media

15 Answers

Transcend 8 GB Pendrive showing write protected

Think this write protection error is due to some virus.
Steps to remove write protection for Transcend users
1) Go to download center of the transcend,here is the link
Type the model no. or part of model number you are looking for.
example: JFV30(all alphabets in Caps )
2) Choose other details like product type etc. and search for your product
3)Then select the product which which is most similar to yours from search results
4)Then download the mFormat utility. You will asked for serial no. if you dont have..enter this no. 1456784523
5) Connect your pen drive
6) run the mformat utility and select full format after full format your write protection will be removed. try twice or thrice if you can't correct at first time.
Thats all...

It worked for me and my friends....

Other pen drive users may visit there vendors site and download any fromat utility present there for your model.

Nov 07, 2008 | Transcend (589307) Media

1 Answer

Problem regarding the write protection of pendrive

Some devices have a physical lock switch on the body of the drive itself. It may or may not be labeled as the lock. Switch it to the other position, and the write protection will be removed.

Jun 11, 2008 | Memory Cards & USB Flash Drives

4 Answers

Transcend 1 GB removeable Pen drive is not detected

The pen driver is ifected with virus.Just format it with CMD and ur problem will be solved

Nov 01, 2007 | Transcend (589307) Media

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