How can I Save Output of a command in WinDbg to a Text File?
Start WinDbg from the command line using the -logo option:
windbg.exe -logo logfile.txt
That will get everything done logged to the file specified. You can find more details of the command line options here.
Or, if you are already in a debugging session, you can use the .logopen command to start logging. For more info on this command see here
Or you can click edit->Open/Close log file in the WinDbg GUI.
More info on log files is here.
You can use .logopen , all of the commands you input and response from windbg will be logged, and then use .logclose to flush the data into
You can also do this from the WinDbg gui 'Edit>Write Window Text To File...' if you find that easier.
来源：https://stackoverflow.com/questions/1006060/windbg-command-output-to-text-file