If you have problems recovering a corrupted or unsaved Notepad file, then use one of these 3 methods to recover the Notepad file.

After completing the steps, you can continue using Notepad or another text editor, such as Visual Studio Code, to edit the file and build custom configurations for Windows Sandbox.

If you want to install and run Software in a Sandbox to test the program in Windows 11/10,, you can follow this complete guide.