System restore points should be taken into the consideration on the running operating system only. Since you are unable to launch several Microsoft operating systems simultaneously, other system restore points will not influence the system functionality. Acronis OS Selector is a boot and partition manager. As a boot manager it allows you to multiboot between several operating systems installed on your computer. (!) Acronis OS Selector allows you to install an older operating system where a more recent operating system is installed: e.g. You can install Windows XP on a computer with Windows 7. Right-click on the operating system and select Delete: Tick off the Delete the operating system directories checkbox and click Yes: This will delete all the operating system's folders and files as detected by Acronis OS Selector and specified at Steps 2 and 3. Thus, the whole operating system will be deleted. More information. Once an operating. Acronis OS Selector 5.0 turns 50,000 Popular Hard Disk Partitioning and Multi-Boot Software Exceeds 50,000 in Single Unit Sales. South San Francisco, CA — May 22, 2002 — Acronis Inc., the technological leader in system software development, today announced that Acronis OS Selector 5.0, one of the company's leading titles, has exceeded 50,000 in single unit sales worldwide. Acronis OS is among the few boot managers that allows for many operating systems to be installed on a single computer. Also, it allows you come up with many configurations for any installed operating system. The software allows you to manage your localized operating systems in a convenient manner. Acronis operating system selector.