How to prevent Outlook from deleting text as I type in an email?
Occasionally, Outlook may begin deleting text as you type in a new email message, a situation that can be both confusing and disruptive to your workflow. This issue typically presents itself when Outlook switches from the standard insert mode to overtype mode, causing each new character to overwrite existing text instead of simply adding to it. Even if you haven’t manually pressed the Insert key on your keyboard, such behavior can appear unexpectedly, as shown in the screenshot below. This article provides clear steps to resolve this problem, ensuring that text is no longer removed as you compose your emails in Outlook. By properly adjusting your settings, you will safeguard your messages from accidental text deletion while typing.
Prevent Outlook from deleting text as I type in an email
The “overtype” mode in Outlook’s email editor can sometimes activate unintentionally. This can be triggered by external keyboard shortcuts, connection issues, or simply due to a software glitch. If you frequently find Outlook deleting text as you type—even without intentionally activating the Insert key—then the following steps can help you disable this behavior and restore regular typing functionality in your emails. Understanding when and why this setting activates will help you maintain smooth email editing experiences.
1. To begin, open Outlook and click Home > New Email. This will bring up a fresh message window, allowing you to access editing options.
2. In the newly opened Message window, proceed to click File in the top-left corner, and then select Options from the list. This action opens the main settings area for Outlook.
3. Inside the Outlook Options dialog box, select Mail from the navigation panel on the left. Next, locate and click the Editor Options button, which controls how the email editor handles text input.

4. Once the Editor Options dialog box appears, select Advanced from the left menu. Here you will find two options: Use overtype mode and Use the Insert key to control overtype mode. Uncheck both of these checkboxes to prevent accidental activation of overtype mode.
Clearing these selections ensures that pressing the Insert key does not unexpectedly switch you into overtype mode, and that Outlook remains in insert mode by default. If these options are already unchecked, you may want to restart Outlook to confirm the settings have taken effect.

5. Click OK successively to save your changes and exit both dialog boxes. Finally, you can close the new email message window without needing to save it.
Once you have completed these steps, Outlook will retain your preferences and will not delete existing text as you type in any new or reply email windows. This adjustment is especially helpful for users who regularly create lengthy emails or edit detailed drafts, as it protects content from unexpected deletion.
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