Cannot Download Apps From Windows Store

I've been to many corners of the internet trying to find a solution to this problem. I honestly didn't know it was a problem until today, as I have rarely used the Windows App Store.
I went there to download the Nook app onto my Lenovo ideapad, running on Windows 8.1 Pro. I've come to find out that no matter what I try to download, I get the error message 'Something happened and your purchase couldn't be completed', even if it's a free app.
I made sure my laptop clock/date is accurate, changed settings in Services (Windows Update), Firewall is set correctly, etc.
What I refuse to do are things that will reset my system, alter the laptop's software or re-install Windows 8. My laptop didn't come with a disc for re-installing all the things that make my computer function. I bought it at BestBuy if you're wondering. I'm afraid my laptop won't be able to recover from a reset, unless someone has an idea that would prevent my essential programs from being deleted, especially since this is a minor issue of simply downloading an app. I don't think that warrants a complete system rest.
Any ideas would be appreciated. Thanks in advance.
Cannot download apps from windows stores

Microsoft Store Apps Not Downloading

Can't download apps from windows 10 store. Get Subject to Subject to Microsoft Service Agreement message. But I can't click Get to download app. Can only click cancel. Unable to update Windows Store apps on Windows 10 Mobile and PC? Or update any Windows Store apps on Windows 10 Mobile and PCs in the Release Preview Ring. And at least download. I've been to many corners of the internet trying to find a solution to this problem. I honestly didn't know it was a problem until today, as I have rarely used the Windows App Store. I went there to download the Nook app onto my Lenovo ideapad, running on Windows 8.1 Pro.