Every time I click on Send/Receive email, I get the window security box stating that I have to enter the username and password to log in. Didn't even know about windows security. Anyway, use Fireffox at my major browser, windows mail says that it uses the same settings at IE. Anyway, worked fine this morning, downloaded the latest Microsoft download, a biggie, and now thiss happens. The box is checked to remember the above username and password. Looked in windows options, security and found nothing pretaining to logging on every time. Like I said, never did this before, changed nothing except for the download. Not a virus or trojan, Ran Kaspersky security suite, Anit Malwaye bytes program, SAS program, and spybot and nothing showing. I think it has something to do with the download. Any help would be appreciated.