Question about Sonnenkönig Window kit

Extremely tedious, I spent about 2 hours removing the remains... I used an adhesive oven remover from the DIY store.

or with a hair dryer to soften the glue. Alternatively, you can use a hot air gun, but they get much warmer than a normal hair dryer and then other things could get broken. This can also happen with the glue remover. Always be careful that it doesn't get too hot, depending on what kind of windows you have.

Try Tesa Adhesive Remover 200ml has helped a few times.