How to Change the Size of A Disk Partition Without Reformatting

System partition is an essential part on every computer, because your computer will run into different troubles when a system partition runs out of disk space. When Windows 10 says that there is insufficient free space on system partition, you can use different methods to resolve the problem such as using disk cleanup, reinstalling system, deleting data, etc. However, the best and most useful way is to extend the space of system partition on Windows
how to increase partition size in windows 10 without formatting

HP PCs – Partitioning and Naming Drives (Windows 10, 8)

User Comments Recently, I found lots of people asked the following or similar question on the internet: For example: I would like to know what is the maximum HD and partition size supported by Windows Can I use all disk space if I upgrade my computer to Windows 10 Actually, those people misunderstand the issue, because it is not the version of Windows but the partitioning scheme that rules maximum hard disk size.

In addition, the maximum size of a hard drive partition depends on the file system used to format it rather than depends on Windows versions. Therefore, disks initialized with the same partitioning scheme have the same disk size limit, and partitions with the same file system have the same partition size limit, no matter they are in Windows 7, Windows 8, Windows 10, or other Windows OS. Want to know the exact size limit? Please keep reading.

At this time, some of you might ask why there are 2TB and 16TB limit. To answer this question, let’s start from introducing hard disk sector. Most of you would be familiar with bytes sector, right?

Traditional hard disks are always using B sector, but new disks often employ 4K sector though most systems emulate a 4K physical sector to 8 B sectors for compatibility, which is the so called e. But if it is employing 4K native sector and your Windows supports this type of sectors, you can use 16TB space. For more details of these types of sectors, please refer to Advanced Format of Wiki. However, if the disk was initialized to GPT, we can totally ignore the hard disk size limit, because it can be up to 9.

But luckily, Windows can mount a 2TB partition, and third party partitioning software is able to create such a partition. More surprisingly, a large FAT32 partition could function well. For a NTFS partition, it can be very large. However, if your current allocation unit size prevents you from extending an existing NTFS partition, you can increase it without losing data to fix the issue.

Detailed steps will be shown soon. Allocation unit is also called cluster. But if you initialize it to GPT, you can make up volumes. Well, do you want to break such limits? If yes, go on reading. Please download and install the freeware.

Free Download Then, launch it to get the main window. At last, click “Apply” button to make all changes executed. Besides, we suggest creating a bootable disc or USB drive by using its Bootable Media feature or create a system backup with PC backup software , MiniTool ShadowMaker before the conversion to avoid system accidents.

Press on Win and R key to start Run, and type diskmgmt. Just initialize your disk to GPT. But if the disk has been initialized, you’ll need to backup all important data stored on this disk, then delete all existing partitions, and convert it to GPT. In addition, many people need to increase cluster size of NTFS partition so as to enlarge the partition. But disappointingly, they have to suffer data loss if they employ Windows Format Utility.

Moreover, it is able to increase cluster size without data loss, too. Please download and install the program to your computer. Free Download Then, launch the program to get its main interface. To enlarge cluster size, please select the partition and choose “Change Cluster Size”.

Here, we take creating a FAT32 partition for example. Then, specify the size, location, label, drive letter, partition type, and other information for this new partition. Finally, click the “Apply” button to perform this change.

And you have 2 choices. Option 1: You can create up to partitions on a GPT disk in Windows. Option 2: Set One of Primary Partitions Logical Setting one of 4 primary partitions to be logical will create an extended partition where lots of logical drives could be created, and MiniTool Partition Wizard can help you do this without data loss. Just run this software.

Select one of primary partitions and choose “Set Partition as Logical” feature. We highly suggest changing the hard drive partition which has lots of unused space to logical, and it should be a common data partition rather than Windows system partition and boot partition. At last, click “Apply” button to make all changes performed. Once a logical partition is made, you can create lots of logical partitions by taking free space from this partition.

After knowing how to break the hard drive size limit, maybe some of you are also interested in why there are such limits.

Please keep reading to get what you want. But how does these 2 items generate such limits? Here are answers. The partitioning scheme used by most modern Windows-based computers is MBR master boot record , which sets a limit of 32 for the number of bits that are available to represent the number of logical sectors. So theoretically, a FAT partition can be very large. MBR, namely Master Boot Record , is composed of 3 parts, including master boot code, disk signature, and the partition table for the disk.

An MBR partition table is allocated with 64 bytes to hold entries of primary partition, and one partition entry uses 16 bytes. As a result, MBR partition table can hold the maximum number of 4 entries, which means it represents 4 primary partitions at most. However, on a GPT disk, the partition table header defines the number and size for partition entries. EFI requires the minimum of 16, bytes for partition table, and each entry uses byte. Click to tweet Conclusion Now, all the information about Windows 10 maximum hard drive size is told to you.

Though there are hard drive size limits in Windows 10, Windows 8, Windows 7, and other Windows OS, you can break them in easy steps. If you want to use all space of hard disks larger than 2TB, or hope to create FAT32 partitions larger than 32GB, or plan to create more than 4 primary partitions, now try the methods offered by MiniTool Partition Wizard.

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This includes resizing partitions enlarging and shrinking , moving partitions on the hard drive, creating and deleting partitions, and even modifying filesystem types. GParted is a free partition editor available as a desktop program and also as a Live-CD. It supports the following filesystems: A full list of supported operations is available here:

VIDEO: Windows 10 Maximum Hard Drive Size: What, Why, and How-to Guide

How To Increase C Drive Space in Windows 10 Without Formatting In like manner, you can increase the size of C drive without formatting. To increase a partition size in Windows 10, AOMEI Partition Assistant It can resize partition, create partition, delete partition, format partition. Many people need to shrink D: and extend drive C: without starting over, this article while building the Server or PC, but things are changing, original partition size may not fit for No need to format, reinstall or doing anything else. If you use Windows 10/8/7/Vista/XP both 32 and 64 bit, you can shrink D and expand C.

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