Why this technology is important and useful?

It is common that you did something wrong, or change your mind after did an operation. To avoid mistake, NIUBI Partition Editor is designed to work in its own virtual mode, all operations you do will be listed as pending for preview on bottom left of the main window. If you find any incorrect operations, simply click Undo to cancel. If you canceled some pending operations by mistake, simply click Redo, these operations will come back immediately. Real disk partition won't be modified until you click Apply to confirm.

Watch the video how NIUBI Partition Editor works in virtual mode:

If you applied wrong operations, you can cancel the ongoing operations immediately. With the help of Cancel-at-will technology, you can cancel the operations safely.