Updated: 06/07/2019 by Computer Hope

Overwrite may refer to any of the following:

1. In general, overwrite is a term used to describe when new information replaces old information or data. For example, in a text editor, if text was highlighted, and you pressed "a" on the keyboard all highlighted text would be replaced with the letter "a."


In most programs, if you've overwritten any text, and you want to get the text back, you can undo the change.

2. One of two typing settings on a keyboard, overwrite mode allows new input to replace existing characters. The Insert key is used to toggle this mode, enabling or disabling it.

3. When referring to a virus, an overwrite virus is a computer virus that overwrites a file with its own code, helping spread the virus to other files and computers.

Insert, Override, Overtype, Security terms, Virus