According to most governments and standards organizations, there are only three effective methods of erasing a hard drive, the best of which depends on your budget and future plans for the hard drive:
Dị ka ọtụtụ gọọmenti na ụlọ ọrụ nchịkwa dị, ọ bụ naanị ụzọ atọ dị irè iji kpochapụ diski ike, nke kachasị mma na-adabere na mmefu ego gị na atụmatụ maka ọdịnihu maka diski ike: