Ask: I want to give a common U disk, want to add write protection function to it write protect (software), let the data is not easy to inadvertently deleted, suggest U disk write protected, U disk does not write protection switch, and do not use NTFS format, need FAT32 format, under the condition of no production tools, can achieve? My train of thought is by modifying the 0 sectors, destroy the internal logic, simulate the appearance of the u disk damage, then locked write protected, not formatted, do not know that god has done, paid, please contact me!