Like the title says... you have a Windows 10 machine (home or pro) and the desktop icons are all flickering or flashing like mad. Task Manager shows the explorer process (explorer.exe) using a high amount of processor (CPU) usage.
There are a number of things you can try, such as disabling or removing Norton and registry hacks etc.
A quick solution that I have seen work is simply to uninstall Adobe Reader DC. It was some sort of conflict with the Edge browser. In this client's case, they had an alternate PDF solution already so we did not look deeper into how to make Adobe Reader DC work in this case. There may be a solution for that but uninstalling is a good quick way to see if that is the problem area.