Configuring preferences and options in Outlook.com
Hi Jonathan,
Based on your post, we understand that you're receiving pop-up warnings to reset your password on your Exchange account. We'll try to address this the best way we can.
Since you've already scanned your device using your antivirus software and you're using an Exchange account, we highly recommend that you post this query to our TechNet forum page. This can help you get the most qualified pool of respondents and other partners who regularly read the forums.
Should you have further questions, please let us know.