Guide to Installing Multiple Operating Systems on a PC Using Dism++ and rEFInd
This guide shows how to safely set up a multi‑boot PC by using Dism++ to deploy an OS image onto a dedicated partition, creating a UEFI boot entry, and optionally installing the open‑source rEFInd manager to handle EFI entries, all while leaving the original Windows boot files untouched.
This article explains how to install multiple operating systems on a single computer without affecting each other.
It first introduces the principle of multi‑boot, describing the role of the bootloader (UEFI) and the ESP partition.
Step 1: Use a tool such as Dism++ to release an OS image to a dedicated partition and add a boot entry.
下载地址：https://dism.en.softonic.com/Step 2: Optionally install the open‑source boot manager rEFInd to manage the UEFI entries.
下载地址：https://www.rodsbooks.com/refind/After copying the rEFInd files to the EFI partition and adding a new UEFI boot option (e.g., refind_x64.efi), reboot and select the desired OS from the rEFInd menu.
The guide emphasizes that the original Windows boot files remain untouched, so the system remains safe.
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