i get the same problem, i just finisghed building a pc, brand new drives, cpu, everything, installed windows 10, conected to the net, windows update kicked in, then said about an update, uninstall Avira AntiVir, firstly, i hav never heard of it, 2nd ,it is a brand new pc, brand new install, the disk was blank, windows 10 came from bestbuy. windows only on disk