How to make pendrive write protected

 To make your pen drive write protected using command prompt....

Step: 1 Write Diskpart in RUN window.

Step: 2 Now if Windows 7 by selecting yes you will come in Diskpart Window.

Step: 3 In diskpart write follo...wing code....
 
LIST DISK (Press Enter)
 
SELECT DISK 1(Press Enter, <here 1 is that number in which your PD has been detected, generally 0 is your hard disk>)
 
ATTRIBUTES DISK SET READ ONLY
 
EXIT
 
And remove your PD safely.
 Now no one can edit, change or even format your pen drive. ha ha ha....
 
To make your PD same as before use the same code just chage a single line....
 
ATTRIBUTES DISK CLEAR READ ONLY
 
EXIT