A disk is write-protected when the plastic tab
at the top has been moved to reveal a "hole" in the disk. When you look at the
back of the disk with the sliding metal part at the bottom (see below), the left
hole is closed when the disk can be written to. Sliding the tab up and down
switches between write-protected and not write-protected.
When a disk is write-protected, files can be
read or copied from the disk but nothing can be saved or copied onto it. This
can help prevent you (or anyone else) from accidentally deleting or saving over
important files.
This disk is not
write-protected: notice the left hole is closed. |
This disk is write-protected:
both holes are open. |
|
