How to make flashdisk not detect

OK Friends friends this time I'll know a little post trick this time related to the flash, which makes
flash disk is not detected by the computer, yes ignorant  Computer of your friends, or should test yourself.
ok step by step

1. Opening menu RUN (dah to know Agan How to open the run menu)
3. Typing regedit
3. Looking menu HKEY_LOCAL_MACHINE / SYSTEM \ CurrentControlSet \ Services \ USBTOR
4. Looking for the words "start", then click 2x
5. Changed the number to 4
6. Exit regedit refreshes little friends (you know how refreshes)
If pretesting not believe or try to stick input to the Computer
if not detected mean success

Back to Normalize type in Figures 3 back gan.
so many of my tutor

hope hope success friends