I have a portable hard disk and it is mostly used for transferring my friends data and they take it and use it sometimes. But there are few my files which are accidently deleted or altered by them. I want that only those few files should not be able to be deleted by them but only I should be able to alter or delete those specific files on my portable harddisk. I have tried that ownership and security thing but that only happened my laptop case and it went worst. As in this case this harddisk may be used on different computers.
Thankyou
Thankyou
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