Sandisk cruzer blade 16gb not formating and drive not opening

Hi my drive is not formatting and not opening in my computer. Please help to solve the problem

Hello, 

in that case you can see if the drive is working fine with another computer, if the drive is failing on another device also then the drive seems to be defective and needs to be replaced. 

here you can open a replacement with sandisk

http://kb.sandisk.com/app/rmaform