Hrmmmm..... when you upgraded to Windows 10, did you fresh install by chance?
I hear a lot of similar feedback from those that have upgraded.
I upgraded both my desktop and tablet, and then once the upgrade activated, formatted and installed fresh. My desktop has been running like a champ since. The tablet/laptop (Asus Transformer T100, it'* a convertable) was running great at first, and then started throwing a bunch of driver issues recently and was causing me grief. Reformatted it again, put the latest and greatest drivers in, and it'* working like a champ.
I haven't met an OS 'upgrade' installation that I have been fond of yet. I use my desktop daily (i5-2500, 4gb ram, 750 ti, Samsung 850EVO SSD) and quite extensively and haven't heard so much as a peep from it.
Cliffnotes: If it keeps being a problem, format, reinstall. I did, and life is good.