Are pop-ups from Microsoft.com-maintain-pc.live keep appearing on your computer? Be wary because this alert is a scam. It poses as an online support but it is actually an adware that will attempt to commandeer your browser search and homepage. The adware will send you to malicious websites to get money from you or infect your computer further.
Microsoft.com-maintain-pc.live may prevent you from changing your settings back. It is usually installed through bundled software without you knowing. You have to remove it immediately.