Windows 7: prevent copy my files into usb flash memory

hi guys
i want a way or a program that can copy the files in a flash memory into my system but no one can copy the files of my system into the flash memory?

no one has my answer?

Try USB Write Protect.

Enable USB Write Protection to Prevent Virus Attacks and Un-Authorize Use | Free and Useful Online Resources for Designers and Developers

( You may have to Run it as an Administrator. I am not sure since I have not tried it. )

May your flash memory is virus or trojan better is to do format flash memory then copy files.

thank you so much. it was exactly that i wanted.i mark this thread as solved but have 2 question.
1-can anyone format the usb when we apply write protection?
2- can anyone disable write protection without this program?

1. A knowledgeable person ( like me ) who knows how to write-protect it, can also undo it and format it . The program actually toggles a registry entry between 0 and 1. Can be done manually too.

2. Answered above.

So it applies to your PC only and less-endowed users of your PC.

Do not keep extending your requirements. Then the solutions necessarily have to be different.

thank you very much my friend.can you explain for manually write protection what should exactlly do?

Have a look at the post here. ( I don't want to write a long post.)

It also gives you the link for USB Flash Security (Free for Personal Use) to password-protect your pendrive.

thank you so much my friend

excuse me jumanji but i have another question.is there a way to write protect a flash memory in any system. i mean if i insert my flash into my friend's system.he can not delete or format my flash memory?