Resize system reserved partition in Windows 10: 1. Search cmd on the search bar. Right-click the Command Prompt and select Run as administrator.
Now, If you have a pre installed OEM Windows OS, there might be another partition, (excluding the EFI) that is large in size that may be used for storage for system reserved functions and programs/driver packages by the OEM such as programs you mentioned with notices and store some information on that partition. You probably know that there are lots of partition tools for changing the size of system partition on Windows 10, but the fact is that you can resize system partition on Windows 10 without relying on any partition software. You can shrink or expand size of system partition on Windows 10.
Position: How Tos - 3 Methods to Resize Partition in Windows 10/8/7/XP
Summary
Steps to extend C Drive with system reserved partition: 1. Run Disk Partition Expert, in the disk map you can see GPT (Reserved Partition), choose the partition and Delete Volume; then you'll see the color of this partition changed, and shows as 'Unallocated' in the interface; 2. It can resize partition, extend partition, shrink partition and split partition without losing data. With this wool you can change partition size for NTFS, exFAT, FAT32, EXT4, EXT3 and EXT2 volumes via more flexible and simple process. Let’s see how to resize partition in Windows.
About resizing partition in Windows 10/8/7/XP
Resizing a partition is the process of changing partition's size via extending or shrinking it. You can either increase a partition's size or shrink it based on your needs. Besides, you can also split a partition into two partitions or add free disk space to any existing partition.
A partition, also called drive or volume, is a part of continuous logical space on hard disk. A hard drive can be divided into multiple partitions which can be used to store a variety of files such as operating system and personal data. If your hard drive has very large capacity, and you can create more than one partitions on it, so that you can separate Windows, installed application and individual data by storing files on different partitions.
However, when you partition a hard disk, there might be chances that you are not satisfied with the partition size or number the first time you try. For example, one partition might be too small to hold all your data. If your system partition (Windows drive) is running out of free space, computer may slow down or even cause other issues.
Fortunately, resizing partition in Windows 10, Windows 8, Windows 7, Windows Vista and Windows XP becomes a lot easier than previous versions of Windows systems. We can use system built-in tool to resize volume as well as free partition manage to change partition size without data loss. In this article, we'll show you different methods to resize partition in Windows.
Resize System Reserved Partition Windows 10 Bootable
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.
Method 1: 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.
Method 2: Resize partition in Windows 10/8/7 without data loss
This solution gives three examples to show how to extend and shrink partition as well as add free space to existing partition without losing data. In this section, we use a free partition manager program to complete these tasks.
Free partition manager to resize partition in Windows
DiskGenius Free is high-end Windows partition manager software, and it is compatible with all versions of Windows systems including PC and server OS. It allows users to create, format, delete and convert partition; it is also able to move, resize, extend, shrink and split partition without damaging a single bit of data.
- It is supportive over different file systems, including NTFS, exFAT, FAT32, FAT12, FAT16, Ext2, Ext3 and Ext4. Thus you can resize partitions formatted into these filesystems.
- Support resizing partition on both MBR and GPT disks.
- Add unallocated space to any existing partition without data loss.
- Create WinPE bootable disk so that you can manage disk and partition when system fails to boot.
- Recover deleted or lost files & partitions from hard drive, USB disk and virtual disk.
Case 1: Extend partition without data loss
This guide will move free space from one partition to another without damaging existing data.
Step 1 Download and install DiskGenius free on your computer. Run the software and you can see its interface showing all partitions and disks on your computer with detailed parameters.
Step 2 Find and right-click on the partition you want to increase size and select Extend Partition from the displayed menu.
Step 3 Select the partition which contains enough free space and click OK, so that you can move free disk space from this volume.
Step 4 Set disk space you want to move between partitions. You can either drag the partition or enter exact number to decide how much free space you want to transfer. Then click Start button.
Step 5 The program starts to resize partition based on your settings. Wait for the process to complete.
Case 2: Shrink partition without losing data
This tutorial shows you how to shrink a partition without data loss. The disk space shrunk from the disk can be added to other partition, kept unallocated or created new partition.
Step 1 Right-click on the partition you want to shrink and select Resize Partition from context menu.
Step 2 On the Resize Partition window you can set disk space you want to decrease.
You have three options on the disk space cut from the big partition: Create new partition, Keep unallocated and Merge to other partition. You can make the decision in line with your own requirement.
Step 3 Click Start button and the program starts to resize the partition based on your settings. Click Complete button when the process finishes.
Case 3: Add unallocated space to partition
Since system cannot store data on free/unallocated disk space, you need to create new partition on it or add it to current partition so that you can make use of this disk area. Now we'll show you how to add unallocated space to partition without affecting existing data.
Step 1 Launch DiskGenius free version from your PC, right-click on the unallocated disk space and select Allocate Free Space To. Then you can choose which partition to add this free space.
Step 2 DiskGenius prompts operations to be done. Click Yes and it starts adding unallocated space to partition.
Method 3: Resize partition via repartitioning hard drive
Repartitioning a hard drive which is not properly partitioned is another solution to change partition size and partition number. During partitioning hard drive you can set partition type, number, size, volume name, drive letter, etc. thus you can arrange partition according to your needs.
Disk partitioning will delete all current partitions and data before creating new volumes, thus you'll lose all data on the disk which already contains volumes. On this occasion, you need to backup data before repartitioning hard drive. Besides, you also need to reinstall Windows if the disk to be partitioned is the one where Windows is installed.
Before partitioning hard drive, you should plan partition layout in advance, for example, which partition table to use, how many partitions you need and what the partition size you want, etc. As to tools to partition/repartition a disk you can use free partition manager which makes the process intuitive and very simple. You can complete the process with several clicks.
Step 1 Connect the hard drive you want to repartition and launch DiskGenius Free.
Step 2 Select the disk to be partitioned and click Quick Partition button from the toolbar.
Step 3 Select partition number, size, type, 4K alignment, etc. and click OK button. Wait for a couple of seconds and the disk will be partitioned successfully.
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.
Increase System Reserved Partition Size
- 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.
Conclusion
As we've mentioned it is surprisingly easy to resize partition in Windows 10/8/7/XP, and you can either extend or shrink partition depending on your requirement. Both Disk Management and Eassos partition manager can help you resize Windows partition, but the latter one works more efficiently when dealing with complex situations. Don't be afraid to do it, but also don't go overhead. Resizing a partition which contains errors may lead to severe issues such as data loss. If you have any questions or need help on resizing partition in Windows 10, please feel free to email our support team.