Methods to Resize Partition in Windows 10/8/7/XP - E – mail tips and tricks

June 14, 2019
Rate this post

Why do you need to resize partition in Windows?

There are a number of reasons that users want to change partition size, and here we list the most common ones:

  • To make best use of disk space: Due to the daily increasing of data amount, some partition may be full of data, while some partition still has large free space. You can move free disk space between to take full advantage of space.
  • Low disk space issue appears: You receive error message from Windows, which says “You are running out of disk space on Windows (C:). To free space on this drive by deleting old or unnecessary files, click here…” “You are running out of disk space on Recovery (D:). Click here to see if you can free space on this drive.” Deleting files is not recommended on system partition, for you may delete vital system files and cause system crash. In such situation, you can extend partition to fix the issue.
  • There is only one big partition on hard disk. When you buy a new PC, the hard drive is divided into one big partition. You can shrink this volume and create a new partition on unallocated space.
  • You want to dual-booting compute. You may want to install another operating system such as Ubuntu on same hard drive, but the partition does not have enough room. Thus you need to extend partition for the installation of new operating system.

Resize partition using Disk Management

Disk Management is a Windows built-in utility, first introduced in Windows XP for the purpose of replacing fdisk command. It allows users to view and manage disk volumes on computer. Users can view disk layout, file system, status, capacity, type, etc. Besides, it allows users to create, delete, format extend or shrink partition with easy steps. Now we’ll show you how to resize partition in Windows Disk Management.

Step 1  Open Disk Management. Go to desktop and right-click on This PC (“Computer” in Windows 7) icon and click Manage option from context menu. Click Disk Management under Storage from the Computer Management window.

Step 2  Choose the partition you want to resize, right-click on it and select Shrink Volume option.

Step 3  Input the space you want to change and click Shrink button. When you enter the amount of space to shrink, please note the unit is MB, for example, if you want to shrink 10GB from this volume, you should input 10240.

Notes on resizing partition in Windows 10/8/7/XP

Though the partition resizing process is easy and does not cause data loss, there are some things you should pay attention to when resizing partition for data security.

  • Backup data all data on partitions you want to resize. Though Disk Management and free partition manager changes partition size without losing data, there are still chances you will lose valuable data if the process gets interrupted due to certain causes.
  • While resizing partition, do not read or write data to the partition being resized, especially when the process has to move files.
  • The resizing process may take long when partition has large capacity and contains large amount of data. Make sure your computer won’t enter hibernate or sleep mode.
  • Make sure the partition you want to extend or shrink does not contain errors, or the resize process might be blocked by these errors.
  • Do not shun down before the resizing partition complete, and make sure there is not sudden power failure during resizing process.