How to remove paper stickers from windows?

I would try using a flat razor blade to scrape it gently.

Laura,. Try Goo Gone, find it in the supermarket. You can also soak paper towels, and press them on the stickers, use hot water. Wait 20 minutes, and scrub it off. Aloha!

I use a warm bowl of water with a couple drops of soap. Then soak a sponge in the bowl and get sponge soapy. Then rub it over the the stickers in a circular motion. Just peel off or rub off with a spoon so you don't scratch the window. After you remove as much as you can you may need Goo Gone to remove the remaining adhesive. This works on mirrors as well.

Try peeling sticker off first, then use nail polish remover to get rid of the adhesive residue

Thank you all for helping me . I will try all. Blessings