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.