Hi,
The Bing page what you are seeing on the msn client whenever you sign can be disabled by following the below mentioned steps.
Thanks and regards
Mubarak
In order to see assistance on an account you believe may have been compromised please fill out the information at the following link:
https://support.live.com/eform.aspx?productKey=wlid&page=wlsupport_home_options_form_byemail&ct=eformts
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