If Pen-drive Doesn't Take Format

Many times for virus attack pen-drive doesn't take format. If you want to format then just follow the steps.
1. From Start go to Control Panel
2. Double click on Administrative tools.
3. Then double click on Computer management
4. Now from left side click on Disk management and then from right side Pen-drive and another drives list will come.
5. From there right click on Pen-drive and Format it.

Its so easy steps so make your Pen-drive  fresh.