RE: How to change email account settings in outlook from IMAP to POP3?
Use Office Outlook on your desktop as your email app instead of windows 10 Mail-Outlook.com (formerly Hotmail) and select Office's Outlook as your default. The win 10 Mail app is for webmail and home user use. You might need it for your Microsoft webmail Account but use Office Outlook as your mail email program for POP mail. Office Outlook and Outlook.com are unrelated in spite of the recycled name.