Virus on pen drive making it write protected

[hitech0101]

I have 4gb pendrive it is infected with some virus which is making it write protected & unable to use it.I am unable to format it so far i have to tried different things:
1.Tried formatting it on linux.
2.Tried different tools like neo9,hddformatter,jetflash,hpusbtool & a few more.
3.There is another way of changing registry values in HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Contro\StorageDevicePolicies but i am unable to find that registry key (using win7 64bit ultimate).
4.Tried antivirus it detects the threat but unable to clear it out.
5.Tried cmd & then a variety of methods to format/partition but no use.
6.Also tried computer management with same message "the drive is write protected".

Now i have run out of options but i am amazed how none of the above methods have worked,already spent 2 hours searching for a solution but unable to find one.
Please someone help me i want my pen drive back.

 

[LNCPapa]

A bit difficult for me to fathom this being a virus issue if even formatting it in linux isn't possible. Are you sure it's not as simple as a lock switch toggled on?

 

[hitech0101]

i am sure there is a virus because there are some files on the pen drive & i used a virtual machine to run linux then i tried to format the drive but still i get write protected.

 

[DelJo63]

There are a couple of REG settings that have control:

[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\StorageDevicePolicies]
“WriteProtect”=dword:00000001
(if found, delete WriteProtect)

HKLM\system\currentcontrolset\services\USBstor\ DWORD Start = 3 or 4
http://www.petri.co.il/disable-usb-storage-devices.htm

Using GPedit (ie GPO policies) see this KB

or this

 

[hitech0101]

Thanks for helping but i am now facing a new problem the pen drive is detected but windows say the drive has to be formatted before use but when i try formatting the message appears that it is write protected.I was was trying to fix it but it seems i have made matters worse.

 

[DelJo63]

take the thumbdrive to ANY other system and format it there; heck, you can even use
Mac or Linux (format as VFAT32)

 

[LNCPapa]

And don't do it in a linux VM on that machine you're having a hard time doing it from.

 

[Rick]

This is a common problem with failing flash drives. I think the most likely explanation is you had/have an infected file on the drive, but it also recently developed some separate, physical issues.

Coincidences do happen. Perhaps more frequently than they should with computers.

I know people are under the impression that flash storage is reliable, but that property certainly doesn't extend to most of the USB flash drives out there.

 

[hitech0101]

Thanks for helping guyz.I have handed over the drive to a service center they have offered to replace the drive.

 

[Shynash21]

Use a good antivirus