I boot with a USB hard drive. Use the 2000 installation file in the USB hard drive to install the system. After booting, I found that the drive path of the primary partition of the mobile hard drive is C: while the computer's own C drive is displayed as D:.请问 experts, how can I change D: to C:? I used to have a DOS software that could change the drive path. Now I lost it. I still remember that the command format is like C=D, D=C and so on. But now I can't remember the name of that DOS program. Does anyone know? Please tell me, thank you

