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O&O DiskImage is also available as a System Builder Edition. If you want to offer your customers IT hardware together with a professional backup solution, please contact us.
1. What is a backup (image) and how does it work?
A backup in O&O DiskImage is a complete image of a drive or partition. This image contains all the data, system files, structures, and metadata of the original. Thanks to special compression, the image often requires significantly less storage space than the source drive. With regular backups, you can restore servers to a previous, functional state at any time and reliably catch data loss, hardware defects or system errors.
2. What is a drive or partition?
There can be multiple partitions on a server, each of which appears as its own drive. Typical is the separation into system drives (e.g. C:) and data volumes (e.g. D:). Partitions help to separate the operating system, server applications and data in a structured way – a decisive advantage for backup strategies, maintenance and restore processes.
3. Why are regular backups on servers indispensable?
Servers store critical data and usually run around the clock. Data loss can lead to business interruptions, compliance violations, or economic damage. Regular backups guarantee that a functional backup is always available in the event of defects, malware, misconfigurations or system crashes. O&O DiskImage efficiently stores changed data via differential or incremental images – ideal for daily or automated backups.
4. How can I find out where my data is stored?
The properties of a file or folder can be used to determine which drive they are stored on. Especially on servers, it is advisable to clearly structure data volumes to facilitate backup and restore processes. Desktop data or temporary files should not be stored on the system drive if possible to ensure consistent backups.
5. How often should a server be backed up?
For productive servers, daily backups are recommended – ideally automated. Critical systems such as database, ERP or terminal servers should also receive differential or incremental intermediate backups. A regular backup strategy minimizes downtime and facilitates quick restores.
6. Which drives and data should be backed up?
At least the system drive (e.g. C:) and all productive data volumes should be backed up. This includes databases, user directories, network drives, log files, application data, and individual application paths. For server roles such as Exchange, SQL or Domain Controller, a complete image backup is particularly important.
7. Where should server backups be stored?
Backups should never be stored on the same disk they are backing up. External drives, NAS systems, SAN storage, dedicated backup servers, or isolated network shares are recommended. For maximum security, offsite or offline backups are also useful.
8. Are all functions unlocked in the trial version?
Yes. The trial version of the O&O DiskImage Server Edition includes all functions. You can use the full range of features, including imaging, recovery, WinRE functions, and script control.
9. When do I need a bootable boot media?
A bootable media (USB/ISO/WIM) is required if the operating system no longer boots or if the system partition is to be restored. You can use the O&O boot medium to execute complete imaging and restore processes – regardless of the installed Windows system.
10. Can I continue working during a backup?
Yes. O&O DiskImage uses hot imaging and does not lock drives. The server can continue to operate during the backup. However, for very high I/O loads, it is advisable to reduce resource-intensive processes. If the cache is exceeded, the backup can become inconsistent, so check the image afterwards using the validation function.
11. Can a fuse be changed afterwards?
The “Convert Backup File” function can be used to adjust the properties of an image afterwards. These include compression levels, file splitting or the removal of individual drives. Original images always remain unchanged.
12. Can I extract individual partitions or files from an image?
Yes. Images can be mounted as virtual disks. This allows you to extract individual files, folders, or entire partitions without having to completely restore the system. This is ideal for quick recoveries or forensic analysis.
13. Which Windows versions are supported?
O&O DiskImage Server Edition supports Windows 11, Windows 10 and Windows Server 2016, 2019, 2022 and 2025. Boot media is compatible with BIOS and UEFI, depending on the WinRE configuration.
14. How does O&O DiskImage To Go work?
O&O DiskImage To Go creates a bootable medium on which your backup is located. When the server is started via the medium, O&O DiskImage automatically recognizes the saved image and offers the 1-click restore – ideal for quick disaster recovery or moving to new hardware.
15. What is Fortress Mode?
Fortress mode allows backups to be made in a fully isolated Windows environment. This frees backups from interference from applications, drivers, or active processes. The mode can be used either via WinRE or via your own bootable medium. This is especially useful for forensic images, OEM deployment, server hardening, or particularly sensitive systems.
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