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How to remove write protection from removable disk

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Unread 22-08-2008, 02:10 PM   #1
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How to remove write protection from removable disk

I used to see this dialog when i tried to modify datas in my flash disk: "This disk is write protected - Remove the write protection or use another disk"
How to remove write protection cuz my flash doesnot contain any button or switch to unlock.
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Unread 22-08-2008, 08:36 PM   #2
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Re: How to remove write protection from removable disk

Open regedit and go to :

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Contro l\StorageDevicePolicies

find the value WriteProtect and double click to edit it's data and set it to 0.
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Unread 24-10-2009, 03:40 PM   #3
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Re: How to remove write protection from removable disk

I have similar problem, but only on one USB, others works perfect, so problem isn't in system but just in case i try previous tip and the value was set correct. So please help me somebody, USB is revolt OA-U314.
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Unread 26-10-2009, 06:20 AM   #4
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Re: How to remove write protection from removable disk

If you do not have any important things in USB, try to format using this tool.
http://www.revoltmp3.com/soft/HPUSBFW.rar
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Unread 26-10-2009, 11:47 AM   #5
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Re: How to remove write protection from removable disk

I tried also format with HP USB Disk Storage but nothing, only report that USB is write protected, I don't understand.
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Unread 22-06-2010, 11:06 AM   #6
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Re: How to remove write protection from removable disk

Hi bakruyu;

As mentioned in your reply, I went to

Open regedit and go to :

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Contro l\StorageDevicePolicies

But I coudnt find storage device policies in that.. Please help..Is there any other way out. My flash drive is 2 GB Generic.
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Unread 22-06-2010, 12:23 PM   #7
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Re: How to remove write protection from removable disk

It's another case of "shorted USB memory".
THis is one of the results when you remove a flash drive without using the "safely remove" function.
If format doesn't work then essentially, the drive is burnt, dead, time to buy a new flash drive.
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experience: happens all the time to my clients.
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Unread 10-02-2011, 08:37 AM   #8
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Re: How to remove write protection from removable disk

Write Protection on any portable USB Device can be applied by the physical lock provided on the card adjuster or some times provided on the pen drives, so make sure to make your drive not write protected by moving the lock in right direction.

But even after moving the physical lock for write protection the problem can happen due to some virus action. This happens when some virus or script which applies the registry hack to make any drive write protect when connected to the computer, In that case follow the procedure below to remove write protection from your pen drive.

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\Contro l\StorageDevicePolicies

Note: If the registry key StorageDevicePolicies key does not exist, you will need to create it

Download this batch file called add.bat
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
4. Exit Registry, restart your computer and then again re-connect your USB pen drive on your computer. That is it, done.
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Unread 08-10-2012, 05:59 PM   #9
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Re: How to remove write protection from removable disk

ya faced same problem , there is no storage device policies, some help this.
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