Dell laptop not working

Thanks for the response. I've got plenty of memory, upgraded to Windows10 last year and think its 64bit. The issue may be fixed as I was finally able to do a Restore back a couple of weeks and it seems to be working now. But I was getting the message no matter what I was doing, on both Chrome and Edge. Earlier today (before the restore) I couldn't even get the Start to come up. Which leads to another question.... If I do need to Reset to Factory settings, will I be able to get Windows 10 back? It originally came with 8 .... would it "know" to upgrade to 10? Thanks for all the help you guys provide!

Unfortunately, I am still having this issue. I took it to Office Depot for a free checkup and was advised to delete some unused programs, which I did. It is still happening, even with only McAfee and Chrome running, with just or two tabs open. It's happening sometimes to my husband, on his laptop, so maybe a problem with xfinity internet. When not getting the "not responding" message, internet really fast.