Usb Flash Drive Booting up something went wrong to it's boot sector HELP!!!!!!!!!!

Slim Shady it

Honorable
Dec 9, 2013
2
0
10,510
Hi,
I have Kingston USB Flash drive of 16 GB, it works absolutely fine in windows, I can write or delete whatever I want to, the problem is with it's boot sector as I am unable to make it boot able even though It was working before without any problem, I tried all the softwares that I had for example (windows7 USB/DVD download tool, Kaspersky Rescue disc maker) to make it bootable but none of them working now (they write the data but it doesn't boot) before everything was working fine, I even tried to format it with HP USB disk storage format tool but no success.

Note: It's nothing to do with bios boot settings,

thanks in advance.