Virus made Sandisk Ultra 32GB USB 3.0 Flashdrive write-protected

[technikki]

Hello guys,
I've been using a Sandisk Ultra 32GB USB 3.0 flashdrive for about 6 months. Last week the flashdrive was affected by a VIRUS, which made the drive write-protected.
Since it is protected now, I can't either format or delete any data from the drive. I've tried scanning the drive with AV programs, and they detect the malware but ain't able to delete or quarantine the infection because of the protection. Also tried the disk re-partioning and low-level formatting using tools suggested by Tech sites. Methods like CMD, Registry Editor etc to disable the protection went futile too.
Please help me get rid of this infection and retrieve my flash drive back in working condition..

 

[R_1]

have you tried remove the partition using fdisk?

I suggest making a puppy linux CD/USB and booting from that. Linux does not care much for windows permissions and you may be able to remove the current partition and replacing it with a new one.
http/puppylinux.org/main/How%20to%20download%20Puppy.htm

 

[technikki]

actually I tried formatting the drive in Ubuntu. Tried re-partitioning with some tool my friend suggested. Ubuntu says it is protected too!!