A lot of people are having various problems with WINDOWS 10. We highly recommend you wait awhile before upgrading so Microsoft can get bugs worked out.
You have ONE MONTH from the date of installation to downgrade back to Windows 8.1 or Windows 7 if Windows 10 isn’t right for you or causes problems.
We also recommend making an image of your hard drive BEFORE upgrading that way, it is much easier to put your computer back to the way it was before upgrading to Windows 10. We can do this for you as long as you have a portable hard drive to put the image on.