removing windows clean

hey. just wondering whats the safest way to remove a window without any risk of cracking or damaging it. gotta attempt to remove a rear coupe window if anyones done it before i could use the help please send a pm with your contact info if you could lend a hand.
take care

you need some tool it almost looks like an apple pealer but it cuts into the sealent then you run it around the window us a screw driver to pull up the metal tabs in the corners of the window

Get it done at a shop the risk of cracking it is not worth the aggravation.