I have a 400 GB hard disk. I want to know if there is any way to divide it into two partitions, A and B, And make their way logically isolated from each other! I have a Windows 7 in partition A and a Windows XP in partition B. And in each window, the OS sees only a 200 GB hard disk
Roxanne· Answered on Aug 09, 2023
Although the majority of computers come pre-installed with just one operating system, it is feasible to install many operating systems on a single machine. Having two Operating Systems on the same hard drive is called dual boot. This article will tell you how to dual-boot Windows 7 with Windows XP. To keep the two systems from interfering with each other, you need to create a new primary partition for Windows XP. Here are the practical methods regarding two situations:
Situation 1. New Disk
If your 400 GB hard drive is brand new and hasn't been partitioned, instead of using Disk Management to create two primary partitions one by one, you can run EaseUS Partition Master. Its New Disk Guide tool can help you create multiple partitions in one go efficiently and safely.
Follow the comprehensive guide on using EaseUS Partition Master to partition a new disk:
Step 1. Go to EaseUS Partition Master, and it will detect the new disk and pop up the New Disk Guide window.
Step 2. Choose "Partition this disk" and set the partition number as two, size as 200 GB, and style. Select "Proceed" to move on.
Step 3. Tap "Execute 1 Task" and then click "Apply."
Situation 2. Disk Already Partitioned
However, if your hard drive is already partitioned, you need to save your data in another storage device before re-partition your disk. EaseUS Partition Master can help you delete all the partitions on Windows 11/10/8/7 PC at one time and then create two new primary partitions.
Note: You need to clone or back up the data on the target 400 GB hard drive for data security.
Step 1. Go to the "Partition Manager" section and right-click the unallocated space to click "Create."
Step 2. Customize the advanced settings that contain partition number(2), size(200 GB), drive letter, partition label, and file system. Click "OK."
Step 3. Choose "Execute 1 Task" and "Apply" to create two primary partitions on your 400GB drive.
Here is a related article that contains a procedure for how to install Windows XP on the New Partition:
Further Reading: How to Install Windows 11/10 on the New Partition
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