--- title: How to Install on a Multi-Boot Windows System description: installing RollBack Rx Pro Reboot Restore Standard / Enterprise on a multi-boot Windows PCs --- [Skip to content](https://support.horizondatasys.com/knowledge-base/how-to-install-on-a-multi-boot-pc-#main-content) [Submit a Ticket](https://support.horizondatasys.com/knowledge-base/kb-tickets/new) [Support Portal](https://support.horizondatasys.com/tickets-view) [![Horizon DataSys - Making It Simple](https://support.horizondatasys.com/hs-fs/hubfs/HorizonDataSys_logo-tagline.png?width=175&height=38&name=HorizonDataSys_logo-tagline.png)](https://horizondatasys.com/) - [Tickets](https://support.horizondatasys.com/tickets-view) - [Knowledgebase](https://support.horizondatasys.com/knowledge-base) - [Login](https://support.horizondatasys.com/_hcms/mem/login) Open main navigation Close main navigation - [Tickets](https://support.horizondatasys.com/tickets-view) - [Knowledgebase](https://support.horizondatasys.com/knowledge-base) - [Login](https://support.horizondatasys.com/_hcms/mem/login) - [Submit a Ticket](https://support.horizondatasys.com/knowledge-base/kb-tickets/new) - [Support Portal](https://support.horizondatasys.com/tickets-view) - [Contact us](https://horizondatasys.com/contact/) [Contact us](https://horizondatasys.com/contact/) How can we help you? - There are no suggestions because the search field is empty. 1. [Horizon DataSys Knowledge Base](https://support.horizondatasys.com/knowledge-base) 2. [FAQs](https://support.horizondatasys.com/knowledge-base/faqs) May 13, 2026 # How to Install on a Multi-Boot Windows System ## This article walks you through installing Reboot Restore/RollBack Rx Pro on a Windows multi-boot system. The process requires installing the application on each Windows OS in a specific order, finishing with a single reboot at the end. ### Before you begin - This process applies to Windows operating systems only. - Multi-booting with Linux/MacOS is not supported. - Only a single license key is required per PC, regardless of how many Windows OSes are installed. - Snapshot data and history are shared across all protected Windows installations. Example configuration used in this guide: **Dual-boot with Windows 10 and Windows 11.** ### Part 1: Install on the First OS (Windows 10) | 1. Boot into your first Windows OS (Windows 10 in this example). 2. Download and run setup.exe installer form the following install folders from downloaded ZIP file:  - *Reboot Restore Client\\setup.exe* - *RollBack Rx Professional\\setup.exe*When prompted for an installation type, select **Custom**. 3. On the installation options screen, select: *“This computer has multiple boots of Windows OS. This is one of the OS I need to install the product.”* 4. If a partition selection screen appears, select all partitions. 5. The installer will complete and close without prompting for a reboot. This is expected — the RollBack Rx Pro application will not be functional yet. | ![OS selection](https://support.horizondatasys.com/hs-fs/hubfs/OS%20selection.jpg?width=607&height=455&name=OS%20selection.jpg) ![custom install](https://support.horizondatasys.com/hs-fs/hubfs/custom%20install.jpg?width=443&height=351&name=custom%20install.jpg) ![Multu-boot-1](https://support.horizondatasys.com/hs-fs/hubfs/Multu-boot-1.jpg?width=495&height=394&name=Multu-boot-1.jpg) | | --- | --- | TIP: Repeat the above steps on the 2nd operation system ***if you have more than 2 Windows OSes*** on your multi-boot setup. ### Part 2: Install on the Final OS (Windows 11) | 1. Manually reboot your PC and select your final Windows OS (Windows 11 in this example). 2. Download and run setup.exe installer form the following install folders from downloaded ZIP file:  - *Reboot Restore Client\\setup.exe* - *RollBack Rx Professional\\setup.exe* 3. When prompted for an installation type, select **Custom**. 4. On the installation options screen, select: “The computer has multiple boots of Windows OS and I have installed in all the other OS. This is the final OS I need to install the product.” 5. When prompted, select all partitions you want protected. 6. The installer will prompt you to reboot. Allow it to complete — this final reboot installs the RollBack Rx bootloader and sub-console, completing the installation across all Windows OS instances. | ![OS selection 2](https://support.horizondatasys.com/hs-fs/hubfs/OS%20selection%202.jpg?width=589&height=432&name=OS%20selection%202.jpg) ![custom install](https://support.horizondatasys.com/hs-fs/hubfs/custom%20install.jpg?width=494&height=392&name=custom%20install.jpg) ![Multu-boot-final](https://support.horizondatasys.com/hs-fs/hubfs/Multu-boot-final.jpg?width=484&height=383&name=Multu-boot-final.jpg) ![partition selection](https://support.horizondatasys.com/hs-fs/hubfs/partition%20selection.jpg?width=488&height=389&name=partition%20selection.jpg) | | --- | --- | ### Need Further Assistance? If you run into any issues during installation, our support team is happy to help. 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