If you have Support Assist (SA) installed that might be the issue. SA updated recently and bring with it a lot of issues. Just take a look: [URL]  To see if SA is the problem, disable some services related to SA. Do the following: Press the Win + R keys on your keyboard, to open the Run window. Then, type "services. msc" and hit Enter or press OK. The Services app window is now open. Find and sett the following services to manual:  [IMAGE] Then restart the PC and see if that makes any difference. 
Periodically, (at least 2-3 times per hour) my laptop will freeze for 1-4 seconds while two different fans within the laptop spin up loudly and then stop. It has never done this before that I have noticed and I have only been using the laptop for school lately (shouldn't be a very high demand as most of it is reading and typing). Any ideas what's going on? Should I be worried? Cheers, JD
17 R3, random freeze with fan function