now trends are bases on the size, not only data stores, mobile phones, and more gadgets. When other way USB pen drive is used for creating bootable for some laptops, notebooks and mobiles to boot for certain operating systems.
normally USB flash drives are used for data transferring, but what to do USB is not working formally, then we formatted. but not working some time formatting like direct way. On the time have an alternative way its format pen drive using command prompt.
Step 2: Type cmd and press enter.
Step 4: find the which letter for your pen drive, if you want can't then check here.
Step 5: after type format f: (note: if your pen drive letter assume 'f' or replace which letter you want).
Step 7: wait for load and completing.
Step 8: some time its taken long time because its depends of storage of pen drive.
if you want to quick format then type format /q f: (note: if your pen drive letter assume 'f' or replace which letter you want).