Removing window trim to insulate?

Hi all,
Just picked up my new trailer - an RC 7x12. had the factory install two windows and electric, and the rest is on me. Love this forum!
Started sinking my teeth into it last night by removing most of the plywood walls. Now, I have to remove the wood where the windows are. The windows, or more so, the trim around the windows have me wondering...I obviously need to remove the trim around the windows from the inside, but is there anything to be extra cautious about? As in, when I remove the trim, will the window shift, or holy @#%, just drop out? Looks good and set in the opening, with supports, and caulked, but figured I would ask this before making a huge mistake. Thanks in advance...and thanks for all the good information and ideas on this site!
Just picked up my new trailer - an RC 7x12. had the factory install two windows and electric, and the rest is on me. Love this forum!
Started sinking my teeth into it last night by removing most of the plywood walls. Now, I have to remove the wood where the windows are. The windows, or more so, the trim around the windows have me wondering...I obviously need to remove the trim around the windows from the inside, but is there anything to be extra cautious about? As in, when I remove the trim, will the window shift, or holy @#%, just drop out? Looks good and set in the opening, with supports, and caulked, but figured I would ask this before making a huge mistake. Thanks in advance...and thanks for all the good information and ideas on this site!