Once all strings have been replaced, you may begin to tune the guitar to your desired tuning.

Strings may become untuned for some time after they are replaced, this is because they are still adjusting in the bridge and it may take a few times to tune before they are set.

After the strings are tuned to where you want them, take you winder/cutter and cut off the excess string at the end.

Be careful as to how much you cut off in case the strings are not fully set in the bridge. I suggest leaving about a half inch until you know it is safe.