UltraISO for Windows

UltraISO 9.7.6.3860 is an optical disc image editor for Windows from EZB Systems. You download UltraISO to open an ISO file, change its contents without unpacking, convert other image formats to ISO, or write a bootable USB drive from a Windows or Linux image.

Specifications

What UltraISO does

Disc images are still the standard way to distribute operating systems, recovery tools and old software. UltraISO lets you work with them as if they were folders. You open an image, see its file tree, and add, delete or rename files and folders directly inside it, then save the result as a new image. It can also build an image from files on your disk or from a physical CD or DVD, convert formats like ISZ, DMG, DAA and UIF into standard ISO, and mount images on a virtual drive. One of its most used functions is writing a bootable USB stick from an ISO, which is how many people install Windows on a PC without an optical drive. The program keeps the boot information of the image, so you can edit a bootable disc and it stays bootable. ISZ is the developer's own compressed image format.

Trial limits and price

UltraISO is shareware. The trial lets you try the functions, but saved images are limited in size; to remove the limit you buy a licence on the official website.

How to install

1. Download the installer from the official download page.
2. Run it and follow the setup steps.
3. Start the program and choose "Continue to try" or enter your registration code.
4. To make a bootable USB drive, open an ISO and use the Bootable menu.

Safety

Keygens and cracked builds of UltraISO are common on warez sites and are a frequent source of malware. Writing an image to USB erases the drive, so check the selected disk twice. The version history lists fixes in each release.

Tips

Keep a copy of the original image before editing it, and test a modified bootable image in a virtual machine before writing it to USB.

Pros and cons

• Pro: edits images without unpacking them.
• Pro: supports many image formats.
• Pro: very small and light.
• Con: size limit in the trial.
• Con: dated interface.
• Con: paid, while free tools cover basic tasks.

Alternatives

For creating bootable USB drives, Rufus on our site is free and focused on that single task. Media Creation Tool is Microsoft's own utility for downloading Windows and writing it to a USB stick.