To access the serial console from windows the Hyperterm program can be used. Identify which serial port the platform is connected to and ensure a note is made of the correct COM port, e.g. COM1 or COM2.
Start HyperTerm and create a new connection. When prompted for which modem to use, instead choose the appropriate COM port, as noted earlier. Then the appropriate settings for your platform (please refer to platform specific documentation) typically these settings are 115200 bits per second, 8 data bits, no parity, 1 stop bit and no flow control.