How to remove the write protection from a TRANSCEND 4GB USB drive. tried formatting not worked, tried changing the registry value to 0 not worked, tried uninstalling trhe USB driver and re installing didn't work any other option ?????

To remove write protection:

Open Start Menu >> Run, type regedit and press Enter. This will open the registry editor.
Navigate to the following path:

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\StorageDevicePolicies

Double click the key WriteProtect in the right pane and set the value to 0
In the Data Value Box, press OK
Exit Registry, restart your computer and then re-connect your USB pen drive to your computer.

you can repair your JetFlash pen drive at http://www.transcend-info.com/Products/online_recovery_2.asp?LangNo=0

Go start menu then click run and type regedit then ok.
HKEY_LOCAL_MACHINES/SYSTEMS/current control set/control/storage device policies.
note:if storage device policies key does not exist then download add.bat file and double click it. After double click it is added automatically to registry.
Double click the write protect in the right pane and set the value to 0 in the value data box and press ok button.
restart your computer and again reconnect the pen drive on your computer.

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.

USB drives can be write-protected by modifying the StoreageDevicePolicies Registry key and WriteProtect Registry value.
click Start>run>regedit to open Registry Editor. and press control+F to open the find dialogue box and type "usb device" or "driverdesc" to open usb mass storage device or type "usb mass storage device" in the search windows. And right click on it and delete. This will set the policy value to 0. then insert your usb device. It will work fine.
# Remember: do not delete any unknow files in the registry as this will make some programes not work as usual.

also
If you are running a Windows XP OS then you might be able to:

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



hope this helps
don

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\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

4. Exit Registry, restart your computer and then again re-connect your USB pen drive on your computer. That is it, done.

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.

There is a small unlock tab. Please push it in right place to unlock

1. Download this tool:
http://dl.dropbox.com/u/4040651/HPUSBFW_2.2.3_MASTER.exe

2. Format

(Before removing USB flash drive click on the Safely Remove
Hardware icon and then click on USB flash drive you want to remove)

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.