>To change SD card serial number without formatting Note: Formatting the hard drive will delete all data from it, so please backup important files beforehand. After you format the SD card, you can retype the command to check whether the serial number is changed or not. How to change SD card serial number in Windows 10/8/7?Īs mentioned above, the disk serial number is automatically generated and assigned when you format the partition, so you can format it again to change the serial number of the SD card. Thus, you can change the SD serial number to match your old one’s, then the software association issue can be avoided effectively. So, if you plan to replace your old SD card with a new one, a different serial number will be created with software association. The disk serial number is used by software applications to identify the drive and prevent multiple activations of the same software on another computer. Why do we need to modify the SD card or other hard drives serial number? We can find some clues from the functions of the serial number. Why need to change SD card serial number? To check or read the serial number on your storage device, you can execute the command: dir in the Command Prompt window. The function of the SD card serial number is similar to the fingerprint of persons: identify a specific item. So they may contain letters and other typographical symbols, or may consist entirely of a character string. Instead, it is determined by the data and time on the real-time clock on the current computer at the time when you format the hard drive. The serial number does not need to be strictly numerical. Besides the SD card, other electronic data storage devices such as USB flash drive, memory cards, hard disk drive also have such a number. A serial number is an identifying code assigned to the hardware during the creation of a file system for unique identification and licensing.
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