ipconfig windows flashes and disappears

It's because the ipconfig has finished, and automatically closes itself. This way you won't get a chance to read the messages it returns.

To be able to read the ipconfig messages run ipconfig from the command line.

1. In the run command prompt enter cmd followed by enter
2. You should see a black screen, similar to the old DOS, enter ipconfig followed by enter
3. Voila, your ipconfig :)

This works for all other similar commands/programs in the command line.

Try "cmd /k ipconfig /all" without quotes !!