Hello!
If you are currently having issues with windows 10, you should consider one of two things:
1- Making a clean copy of windows 10:
Pros: You get to keep windows 10; Fresh and clean install
Cons: Not sure if it will solve the issue; takes longer; you need to backup your data somewhere and you will have to reinstall your programs back again.
This process is fairly easy and there are tons of tutorials to make a fresh install on w10 on the internet so you can give it a shot, it has no risks whatsoever.
2- Downgrading back to your windows 7:
Pros: Really easy, no hassle
Cons: You won't have Windows 10 just yet; You'll lose some programs;
For this you just go to windows 10 settings, Update and Security, Recovery and in the "Go back to windows 7", you click Restore. Now just playing the patience game and windows will do the work for you
Good luck!
Nuno