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Step 1
Immediately undo what you've just typed over. If you catch your mistake quickly you can undo the deletion, and the words you replaced will return. Of course, the words you just typed will be deleted. To undo a previous action, click on the undo command which may be located under "Edit". Some programs have an "Undo" icon at the top of the screen.
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Step 2
Place the cursor on the section where you want to add the new text.
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Step 3
Locate the "Insert" button on your keyboard. This may be located on the right side of the keyboards with the numbers. The insert key may be labeled "Ins".
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Step 4
Press the Insert key. And then begin typing. This should reset your keyboard to push the type forward as you add new type.
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Step 5
Repeat step 4, and it will reset to type over the type, instead of pushing it forward.











