Extract text from Disk image files (ISK)
To convert ISK Disk images to another format, you need Lenovo OneKey Recovery or other Disk Image software.
To convert other file formats to the "Proprietary Disk Image" file type, you need software like Lenovo OneKey Recovery or a similar tool.
The .ISK file format primarily functions as a proprietary system recovery or customization disk image. Depending on the source, it is utilized by Lenovo for its OneKey Recovery system, by Dell via the LSFC tool, or by StarWind Software as an iSCSI virtual disk image. Historically, it was also used by legacy software like Lotus SmartSuite to store SmartCenter drawer data.
Users often need to convert .ISK files because they are tightly restricted to specific vendor hardware. Standard operating systems cannot mount them out-of-the-box, meaning you cannot natively browse the files inside. A Lenovo recovery .ISK file, for example, is heavily reliant on the OneKey environment and often spans multiple gigabytes. Users typically want to convert these files into open standards like ISO, IMG, or VHD to mount them as virtual drives or extract critical backup data without needing the original vendor's machine.
Standard online converters fail to process .ISK files because they are large, closed, and contain proprietary headers or vendor-specific encryption. Explain why this file format is difficult to open or convert: often only the original software can properly read or export the data. However, many of these files are secretly wrappers around standard FAT32 or NTFS file systems. If our analysis detects a supported underlying or embedded format, viewing or extracting the internal content may still be possible.
Convert.Guru analyzes your ISK file, detects the exact format, and lets you read the text inside.
Users also converted FD, BIF, LCD and CDN files.
If you want to convert ISK file to CDN, you can use Lenovo OneKey Recovery or similar software from the "System Backup and Recovery" category. In the File menu, look for Save As… or Export….
To convert files to ISK, try Lenovo OneKey Recovery or another comparable tool in the "System Backup and Recovery" category.
The history of Convert.Guru began over 25 years ago in California with Tom Simondi’s file-format database. A former contributor to Space Shuttle development and a software pioneer of the 1980s, Simondi established a trusted resource for file type analysis that was even referenced by Microsoft Windows XP. Today, we use modern technology to process and convert thousands of file formats while continually improving our ISK converter.