Yup. Its very simple to do and a GREAT time to reseal the windows using butyl tape.
Remove the screws from the interior trim ring while someone holds from the outside just in case the sealant doesn't hold. If the sealant holds, you don't have to remove the window just yet. You can go on and make your interior panels, re-insulate, etc. without removing the window. I would definitely remove them afterwards though and re-seal.
Once the interior trim ring is removed, remove the window from the outside. After you do what you want to do, clean up the lip on the window. Install new butyl tape. Clean the metal around the window opening. Reinstall the window. Hold from the outside and re-install the trim ring on the inside.
Here are some pictures of me doing all of mine.