This past week when I run a check for updates, Norton comes back saying it failed. Norton's website tells me to reinstall Norton 360 to fix the problems. When I try to do that, Google's browser fails to download the removal tool due to error codes 8921 and 244. I cannot find any fix for these. So I can't update my protection and I can't remove & reinstall Norton either. I did run Norton Power Eraser that found some problems and fixed them, such as an out-dated JAVA, but did not fix the update problem. This problem is on a computer with Microsoft Vista operating system. I have this same program on two other computers but have not had problems with them. One of those computers runs Vista & the other one runs Windows 10. Help please.