How to fix USB stick issue when windows is not able to access it.

Open a Command Window (cmd) “Run As Administrator”
Enter diskpart
Your will get DISKPART> Prompt.
Enter LIST DISK
You will see all the disks by number 0,1,2….
Enter SELECT DISK X (where x is your USB drive)
Enter CLEAN
Enter CREATE PART PRIMARY
Enter SELECT PART 1
Enter ACTIVE
Enter format fs=fat32 label=”Test”
It will take some time based on your disk size. So please wait.

After formatting the drive will be ready to use.