IPhone won't connect to itunes and I NEED to backup my phone, what can i do?

I need to update my phone's software so the little notification thing can go away… But i'm afraid to because I need to backup my phone. My iPhone stopped connecting to iTunes a couple months ago… Today I finally got around to uninstalling then reinstalling itunes, but it didn't work. Now whenever i plug my phone to my computer the only thing that pops up is the "Apple iPhone" folder in "This PC"(i have windows.) In that folder there's only one icon that says "internal drive".

Before it stopped working, it would automatically connect my iPhone to iTunes, but now it's just a folder popping up. Please tell me what else I can do… I don't really want to go to apple… But i need to back my phone up.

Added (1). even if i didn't need to update my software i still would like to backup my phone but i can't. I need help.

Added (2). I forgot to add, a couple months ago after my iphone stopped connecting to itunes, the "apple iphone" folder popped up. My question makes it seem like it only started popping up AFTER i reinstalled iTunes. Sorry.

Your computer has to install a certain driver in order to detect the USB used to connect your iPhone to your computer. I'm not sure how to get it to install the driver, usually, when I have that problem, I unplug, then plug the USB back in, and it'll install by itself.

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