There is no built in app or tool in windows pc to select and copy error message or dialogue box text, if you want to select and copy any unselectable text for any reason, you need to download and install a simple and lightweight tool called “textify” by using this tool you can select & copy any unselectable text from anywhere, follow these easy steps to know how to do this.
1. Open google in the browser type and search for “textify” download and install this tool into the pc,
2. Set the key like “Ctrl, Alt, Shift” with combination of mouse button, for example “shift+left mouse button”
3. Now just put the curser on any error dialogue box text, press Shift + left mouse button and copy the text and paste wherever you want.
Watch video tutorial.. Click here for more detail….