Q: Old iPod Touch Stuck on The Loading Screen!

I don't know. It just won't go into DFU. I tried like 10 times and even used a clock to time it and all it did was pop up a window on my computer that said Installing Unknown Device Software.

My computer wouldn't let me download the latest iTunes update either.

Ok. I will. Though my laptop is the only one with iTunes.

It says the Security Certificate is invalid.

It's just windows in general. I can only assume it's Window's Defender. That's Windows own brand of Virus Protection that comes standard on every Windows computer. I try to download it and I get a message that says "iTunes Security Certificate is invalid. It will now be downloaded." It's probably being blocked.

Yes it is. I haven't changed it since I set it up when I first bought it.