If, during an emergency, O&O DiskRecovery is not yet installed on your computer, you still have the possibility of executing an Instant-Installation. The Instant-Installation is not system bound. In combination with portable disks the possibility exists to start O&O DiskRecovery on that "instant" on a second computer and to select a removable disks (USB-Stick, external hard disk) as target folder for the "Instant-Installation". You can connect the disks afterwards to the actual computer, where data needs to be saved and start O&O DiskRecovery from there. You will completely avoid the installation on your target computer, which possibly might overwrite important data areas of the hard disk, and would thus make data rescue efforts very difficult or even impossible.
To execute the Instant-Installation correctly, you will need a second computer and a portable disk or a network connection from which you can access the target computer.
If you execute the Instant-Installation on the same computer from which you want to rescue data, you should bear in mind that starting the installation might overwrite important data areas. We therefore recommend to use a second computer and a portable disk for the Instant-Installation.
Should you have already fully installed O&O DiskRecovery on a computer, then you cannot carry out an Instant Installation on this machine. As a result, the Instant Installation pop-up window will not appear.