Write protect

There must be five thousand pages and blogs and whatever out there on how to remove write protection on a usb drive. I have several sandisk drives and I want to ADD write protection to some of them.

I know about and how to use diskpart, I know there are a couple or so programs out there that will do it but all they will do is write protect the drive when used on the computer that the protection was set up on.

What I need is a protection that will prevent the drive from being written to or a file deleted when it is being used on a different computer than it wss set up on.

Any help appreciated