System requirements
- The system requirement of each operating system has to be fulfilled
- Supports 64-bit operating systems
- Windows® 10 and Windows® 11 (all editions)
- Windows® Server 2016 till Windows® Server 2025 (all editions)
| Professional Edition/Special Edition | Server edition | |
|---|---|---|
| Windows® 11 | yes | yes |
| Windows® 10 | yes | yes |
| Windows® Server 2016 | no | yes |
| Windows® Server 2019 | no | yes |
| Windows® Server 2022 | no | yes |
| Windows® Server 2025 | no | yes |
A minimum of 4GB RAM is required for booting with an O&O DiskImage bootable medium.
When using O&O DiskImage, please make sure that the disk drivers needed by your operating system are all the most current versions available. If you're unsure about this, refresh the driver(s).
Dynamic disks are only supported for those features available under Microsoft Windows. Given that Microsoft Windows does not always support dynamic disk bootablity, we cannot guarantee system cloning and restoration will be successful when using dynamic disks.
Access permissions
In order to install and register O&O DiskImage you must be a member of a local administrator group or possess an equivalent level of permissions. Domain administrators normally already possess these permissions.
Supported file systems
O&O DiskImage supports a variety of file systems, ensuring broad applicability across different storage media. Here are the main file systems listed:
| File System | Explanation |
|---|---|
| FAT | FAT (File Allocation Table) is one of the oldest file systems, developed for MS-DOS and early Windows versions. It is particularly suited for removable media and is still used due to its simple structure and compatibility with many operating systems. |
| FAT32 | FAT32 extends the capabilities of FAT by supporting larger volumes and files, making it ideal for older Windows operating systems like Windows 95b/98/Me. FAT32 offers improved storage utilization and is widespread on external storage devices. |
| NTFS | NTFS (New Technology File System) was introduced with Windows NT and provides advanced features including support for large volumes, file permissions, and data recovery. NTFS is the preferred file system for modern Windows versions due to its robustness and security features. |
| exFAT | exFAT was specifically developed for flash memory such as USB drives and SD cards and offers higher efficiency and capacity compared to FAT32. It is ideal for devices with very large files and volumes and is commonly used in digital cameras and smartphones. |
With O&O DiskImage, you can back up the occupied sectors of all supported file systems. If a volume or partition with an unknown file system is found, O&O DiskImage automatically performs a forensic backup, i.e., a backup of all sectors. To manually perform a forensic backup, select the forensic backup option in the Backup Options instead of backing up the used sectors.