Although modern operating systems are pretty stable, they always can crash and need to be restored. In the worst case scenario, you may not have a backup to reinstall your lost programs. Sardu lets you download and create ISO files to restore your programs in case of emergency.

The program has the advantage of being stand-alone, that is, you don't need to install it to run it. It comes in a compressed file, and you can decompress it in your hard drive, in a USB stick or in any other media.

Once you have uncompressed the package, you can run the executable file. The main window will appear, and it will ask you to register your copy. This gives you some advantages, such as the possibility of downloading ISOs and other files to which you won't have access with an unregistered program. Then, you can select the ISO file you want to download. The free version lets you download the ISOs of many useful rescue programs such as Comodo Rescue Disk, AVG Rescue CD, and others, as well as repairing tools such as Boot Repair DIsk for 32 and 64 bit Windows versions, and more.

An extra advantage is that it also includes programs for Linux, for those users that have this OS in their systems.

The developer offers a Pro, paid-based version which lets you download even ISOs of operative systems such as Windows XP, 7, and 10.

You can try the free version before deciding to pay the subscription for the Pro version.