HKEY _ LOCAL _ MACHINE \ SYSTEM \ current Control set \ Control \ COM Name

Mark one.

Hehe, the value of ComDB is binary, 32 bytes, which is actually an array of bits, each bit represents a COM number, from 1 to 256(WINDOWS supports up to 256 serial ports).

If you like, you can use the program to directly change this data into a serial number and write the corresponding bit as 0.