Diskette write protection is performed by the drive's hardware, so there is no way to circumvent it from software. Write-protect your diskettes in order not to accidentally delete important data or to prevent malicious software such as viruses from infecting the diskette.
A 3.5-inch diskette can be write-protected by sliding a built-in tab to reveal the write-protect hole. A 5.25-inch diskette has a write-protect notch located on the right side of the diskette. You can place a write-protect tab over the notch to protect the information stored on the diskette.
To store information on a write-protected diskette, you must slide the tab back over the write-protect hole on a 3.5-inch diskette, or remove the write-protect tab from the 5.25-inch diskette.
If a diskette does not have a write-protect notch or
tab, the diskette is permanently write protected.
Software manufacturers typically use permanently
write-protected diskettes to prevent the information
on the diskettes from being accidentally changed or
deleted.