Monday 21 March 2011

Write protect for Pendrives


Steps to make your drive Write Protected:
1.    Open Registry Editor by typing regedit in Run dialog.
2.    Navigate to the key HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\
3.    Find a sub key inside it named “StorageDevicePolicies”. If it does not exist there then we need to make it. Right click on “Control” key -> New -> Key. Name it “StorageDevicePolicies” without quotes.


http://techsalsa.com/wp-content/uploads/2008/10/write_protect_1-300x275.jpg
4.    Now right click on this newly created key and then click New -> DWORD value and name it as “WriteProtect”.



5.    Modify this key and give it a value 1.

6.    Click OK, and remember to restart the PC.
Now no more data can be transferred to the drive but to start using the drive again just give the “WriteProtect” key a value of 0 instead of 1 and restart the PC.

This seems to be the problem of most of us these days and some of our readers who wanted to know the methods how they can remove the Write Protected error from their USB drives like Pen Drives and memory cards.

What is Write Protected error and why it happens?
In the Write Protected error, we can’t write or copy any data in our flash drives and even can’t format the drive.
There are many reasons that cause this problem, let’s see solutions of them.
Solutions:
•    First of all try to locate a small switch (if any, that you may have not noticed) at some place on the drive or memory card reader. This is the prime reason for this error. If there is one, switch it to the other side to turn the protection off.
•    Yes I know this problem is also occurring these days without this switch but not to worry. Just download this helpful software from here and run it to execute a “low-level format” on the drive. This software is quite handy and may take few attempts to actually remove the error.
•    The problem can also be caused by some virus activity so just get it scanned by some updated good anti virus which may solve your problem.
•    BUT if none of the methods listed above solves your problem then your pen drive might have gone corrupted, so just get it replaced.
Hope any of the methods listed above solves your problem.
Update 1:
After the low level format, you may need to “Partition the drive“. Dont worry, partitioning a pen drive means allocating it its File System and Cluster Size that was lost after the Low Level Format.
For that:
  1. Run diskmgmt.msc in Run.
  2. In the disk management window, select the pen drive, right click on it and click on Format.
  3. Now choose the File System and Allocation Unit Size and do not check the boxes below.

Click OK and the drive will be reusable after this.
Update 2 (Better Solution):
Follow the steps in this post and just put the value 0 (zero) in step 5.
This will surely solve your problem now.
Update 3 (Solution Working):
Thanks to one of our readers Jim, who let us know about the tool called Neo 9, using which we can easily this write protection problem.
For transcend drive users, try the tool at this link, it has been found to work.
This solution has been found working for many users (see the comments below).


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1. Open Start Menu >> Run, type regedit and press Enter, this will open the registry editor.
2. Navigate to the following path:
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\StorageDevicePolicies
Note: If the registry key StorageDevicePolicies key does not exist, you will need to create it
Download this batch file called add.bat from here, and double click after download the key will be automatically added to registry.

3. Double click the key WriteProtect in the right pane and set the value to 0 in the Value Data Box and press OK button

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