Susan, good morning.

Please try this MS-tool to fix the Hosts-file:
TOOLDownload the file to disk and then run it (even though I'm afraid we will get the same errors as before, but let's try anyway).
If that does not work, please consider my offer for a remote maintenance session.

P.S.: I have sent you a PM (personal message), you can read it by clicking on "MY MESSAGES" in the upper right of this forum site.