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Help!

I'm trying to limit permissions on some wav files I have on a USB flash drive (it's just a 2GB job) - basically, I need to be able to open them on my laptop and not have any one else be able to open them on other computers - is this possible? I know absolutely NOTHING. My files are confidential interviews that I want to back up but also protect. I really don't want to make them 'hidden', I just want to limit access to me (and possibly one other user - maybe adding one other computer). I'm on Windows Vista on my laptop - I know that I can change the security settings on files on my hard drive by denying access but don't know how I would do this on the USB... I also don't know what or who I'm denying access to - I've got 'SYTEM', my user profile(-PC), and Administrators that come up... I'm so sorry that my knowledge is so poor.

I probably haven't give very good info there and it might well be a simple (or impossible) thing to do, but I really do know NOTHING at all and am in desparate need of help from people in the know. If anyone could help or point me in the direction of information that's accessible to someone with only basic knowledge of this stuff, I would really, really, really appreciate it.

I would be SO grateful for any help at all...!

Lu, the stressed out Phd student...
 

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Hi and welcome!

Take a look at your USB drive when it is attached to the computer. Your USB drive will be FAT32 which cannot control permissions as an NTFS drive can. I do not recommend changing the drive format to NTFS. You can do this, but there are some disadvantages of doing it.

Here is some information on it:

http://www.ntfs.com/quest22.htm

Some more info...

http://www.pctipsbox.com/format-a-usb-drive-with-ntfs-file-system/

Information on NTFS permissions and how they work:

http://www.windowsecurity.com/articles/Understanding-Windows-NTFS-Permissions.html

Also, please note that even if you do change the USB drive's file system to NTFS, if someone else gets the drive, they can take over the ownership of the drive and do what they want to do with the files.

You will want to look into drive encryption such as bitlocker or PGP.

http://en.wikipedia.org/wiki/BitLocker_Drive_Encryption

PGP

http://www.pgp.com/products/wholediskencryption/index.html

Thanks!
 
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