Windows 10 已于2025年10月14日停止支持。如果您正在使用 Windows 10,参见 这篇文章

Windows 10 reached EOS (end of support) on October 14, 2025. If you are on Windows 10, see this article.

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I changed a setting somewhere and now have a split screen when I am in my email, help.

cor-el 已回复
thesingerlady

My email can only be viewed in a split screen with another page sharing the screen. I don't know how to change the setting back so the email fills the entire monitor. No other site is shared with any other site.

My email can only be viewed in a split screen with another page sharing the screen. I don't know how to change the setting back so the email fills the entire monitor. No other site is shared with any other site.

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Did you use a bookmark to open the page on the left?

Opening in the sidebar is the default for bookmarks that are created via a link or button on a website.
You can check the Properties of a bookmark via the right-click context menu in the sidebar (Ctrl+B; Command+B on Mac).
In the Bookmarks Manager (Bookmarks > Show All Bookmarks) you can click the More button in the Details pane at the bottom right.
Make sure that "Load this bookmark in the sidebar" is not selected.