Windows 10: Massive issue with Windows 10.

Hello. This is my first post on this site so I apologize if there's something off about it.
I've already done a research but couldn't find anything that could really help me because people had access to their desktops and most could find a solution by going to the Control Panel and all. Sadly, I don't have access to my desktop anymore.

So... My notebook is facing a serious problem and I was wondering if there are any solutions for it.
Well, I updated Windows 7 to Windows 10; Everything was working pretty well until after about a month of use - since then, the notebook began to lag and freeze a lot, also many error screens would appear. Even worse, sudden restarts would happen periodically. None of what I mentioned was happening before.
Now, every time I turn my notebook on, the Windows 10 loading screen appears but the initialization won't go any further than that. After the logo disappears, I find myself stuck on a black screen. I can't do anything besides moving the cursor. Ctrl + alt + del won't work as well.
I'm quite inexperienced when it comes to stuff like that, so... If anyone could help me it'd be wonderful.
Thanks in advance.

:)

 

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This issue is an absolute nightmare and frankly I'm finding Windows 10 to be a massive issue causing pain in the butt! Such a shame!

 

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If everything was working fine, then you may have developed a hardware issue, like bad ram or a bad disk.

Alternatively, you could restore your backup. You did make a backup before radically altering your system, right?

 

I believe so... I stopped using my notebook after losing access to everything, so I don't quite remember what I did before. But I'm almost sure a backup has been done.