Writeprotected how can i format & reuse of usb.. or how we get read-only performanace

Open up a command prompt as administrator
Type diskpart and press Enter
Type list disk, and you'll get a listing of all drives on your machine.
Type select disk # to select a disk. You can use the Size column to identify which one it is.
Type attributes disk clear readonly - change your USB's properties so that it is no longer read-only.

Unless it is a read/write disc, you will not be able to reuse it. If it is read/write, you will see the letters RW on the disc. You could put it in the computer and try and format it. Make sure that you format it and not another (hard) drive or USB on your system, because you won't be able to get the information back from a formatted disc.

Good luck,

Paul

To disable the write protection:

1.From the Start menu, click "Run", type "regedit", and press <Enter> or click <OK>.
2.Navigate to HKEY_LOCAL_MACHINE > SYSTEM > CurrentControlSet > Control > StorageDevicePolicies.
3.Double click on "WriteProtect" and change the value to 0 (WriteProtect = 0 for disabled; 1 for enabled).
4.Close the registry editor and restart Windows.
5.After Windows starts, test writing to your USB drive.
Important Note:
Serious problems might occur if you modify the Windows registry incorrectly. **PLEASE** make sure that you follow these steps *exactly* and *carefully*. For added protection, back up the registry before you modify it in case you have trouble so it can be restored.
For more information about how to back up and restore the registry, follow the steps as in the KB Article: http://support.microsoft.com/kb/322756/

click start click to open on my computer you should see your usb drive could be E: or something right click select properties there will be an array of options

select the sharing tab option then advanced sharing make sure you have a tick in the share this folder box

then click permissions make sure you have all 3 boxes ticked full control changes and read in windows 7

click start control panel user accounts click on the administrators account if you have made one or you will have to create one in windows XP

click start right click on my computer select open
Right click the icon of your usb drive (It should be E:/ or something)
Click Properties in the menu that comes up
Click the Sharing tab
Click permissions
And finally, click Allow next to Full Control.


if you need more help with this post a reply

hope it helps

Please refer to this article usb remove write protect

Is there a little write protect clip or switch on the drive itself?

To disable writing access to USB drives and make all USB drives has only read-only access, follow these steps:

1. Run Registry Editor (regedit).
2. Navigate to the following registry key: HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control
   
3. Create a New Key named as StorageDevicePolicies.
4. Highlight StorageDevicePolicies, and then create a New DWORD (32-bit) Value named as WriteProtect.
5. Double click on WriteProtect, and set its value data to 1.

Once set, all users on the computer is now blocked and prevented from copying, transferring or writing any files, documents and data to the USB disk drives, without the need to restart or reboot computer. Any attempt to download or copy files to USB drive will return the following error message:
The disk is write protected.
The media is write-protected.
Remove the write protection or use another disk.
To revert and remove the blocked write access to USB drivers, just delete the StorageDevicePolicies registry key, or delete the WriteProtect registry entry, or change the value data for WriteProtect to 0.
For user who doesn't want to manually editing the registry, simply download the following registry registration files to enable or disable the write protection (block writing attempt) to USB removable drive. Double click the .reg file unpacked from the .zip archive to merge the registry key entries.
Download DisableWriteToUSB.reg
Download EnableWriteToUSB.reg
The trick works in Windows XP SP2 and SP3, Windows Vista, Windows Server 2003 and 2008.

Check for any tabs on the disk itself. There should be one. Slide the tab in the opposite direction.

Try this,
1.
Check out if the USB drive has a small swich for write protection. If its there try toggling the switch.

2.
Windows can all write protect flash drives. Check out this registry path,

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\StorageDevicePolicies.

You may find a key here on the right side by the name 'WriteProtect'. If it's not there this would not be the cause of problem. If it's there, make sure that the value is 0.

Please let me know if this does'nt work.

the drive isnt write protected the usbport or the connection is loose so that the computer is showing the drive as read only drive also you can format it using command and also setting off the read only attribute that may have been put by a virus also softwares like usbcillin makes pen drive writeprotected take care