/BASEVIDEO The computer starts up using the standard VGA video driver. If you have installed a new video driver, but it is not working correctly, selecting the Windows NT entry with this switch enables you to start the computer so you can change to a different driver.

/BAUDRATE Specifies the baud rate to be used for debugging. If you do not set the baud rate, the default baud rate is 9600 if a modem is attached, and 19200 for a null-modem cable. This switch has a secondary effect of forcing the /DEBUG switch as well, whether or not use you use /DEBUG.

/CRASHDEBUG The debugger is loaded when you start Windows NT, but remains inactive unless a Kernel error occurs. This mode is useful if you are experiencing random, unpredictable Kernel errors.

/DEBUG The debugger is loaded when you start Windows NT, and can be activated at any time by a host debugger connected to the computer. This is the mode to use when you are debugging problems that are regularly reproducible.

/DEBUGPORT= comx Specifies the com port to use for debugging, where x is the communications port that you want to use. Like /BAUDRATE, this switch will also force the /DEBUG mode.

/MAXMEM:n Specifies the maximum amount of RAM that Windows NT can use. This switch is useful if you suspect a memory chip is bad.

/NODEBUG No debugging information is being used.

/NOSERIALMICE=[COMx | COMx,y,z...] Disables serial mouse detection of the specified COM port(s). Use this switch if you have a component other than a mouse attached to a serial port during the startup sequence. If you use /NOSERIALMICE without specifying a COM port, serial mouse detection is disabled on all COM ports.

/SOS Displays the driver names while they are being loaded. Use this switch if Windows NT won’t start up and you think a driver is missing.

/ONECPU Disables all but the first processor in a multiple CPU machine.