Hi,
I created Write Protection for USB Drive by changing Registry value. Same as I want to create Read Protection for USB Drive, Is it possbile....
Note:
Without Using Any External Software..... 3  2522 
There are a few ways to do this:
1. Make files on device unreadable recursively using -r option of 'attrib' command.
2. TweakUI allows to hide a storage device from Mycomputer an all places. I expect that if modifies some registry value for this (although this is a per computer setting and doesnot actually makes pendrive unreadable).
3. Encrypt all data on your pendrive using some symmetric cipher based program. But this will need an application because afaik, there's no encryption program shipped with OS upto windows XP (Vista/7 have Bitlocker? right?). Try Toucan Portable if un-abilty to install apps on other computers is making you find no-application way to perform this task.
There could be other possibilities too.
Encrypt all data on your pendrive using some symmetric cipher based program. But this will need an application because afaik, there's no encryption program shipped with OS upto windows XP (Vista/7 have Bitlocker? right?).
I was wrong here. Windows XP has a command to encrypt/decrypt user data. It is called 'cipher'. 'cipher /?' at cmd to read more.
"I want to create Read Protection for USB Drive, Is it possbile...." Do you mean anyone just can read your files in the USB? if so, you can use kakasoft USB copy protection to protect files stored in your USB. After encripted by this program, you can set different users and passwords with different permissions, like: reading, writing, full permissions and others... for example: user1+password1 : after log user1, he just can reading your files and nothing else can do; user2 +password2: after log user2, he just can reading and copying your files; user3 +password3: after log user3, he just can reading, copying, writing, printing... your files...
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