How do I resize a partition without data loss?

Use a reliable partition manager to shrink, move, or extend the partition while keeping existing data intact. Before you start, make sure there is enough free space and back up important files.

What should I do before resizing or moving a partition?

You can recover files from a lost partition for free with the free version of Wondershare Recoverit.

What is partition management?

You can restore a deleted partition in Windows 10 for free using several methods: by changing the drive letter in Disk Management, executing the DiskPart command, using TestDisk, or using the free version of Wondershare Recoverit Partition Recovery. However, you should know that the first method is not always successful, while DiskPart and TestDisk require experience with command-line interfaces. The easiest way to do this is with a disk partition recovery software like Recoverit.

How can I interconvert MBR and GPT without any data loss?

A partition may become RAW when its file system becomes unreadable to the operating system due to corruption or damage. In many cases, RAW partition recovery is possible with capable recovery software. You can use the free version of Wondershare Recoverit to perform RAW partition recovery for free.

Can I extend the C drive without reinstalling Windows?

You can recover a formatted partition on your storage device for free using an open-source solution like TestDisk or with free disk partition recovery software. Unfortunately, successful results can not be guaranteed when you use free partition data recovery software. Alternatively, you can use a free version of more advanced disk partition recovery software like Wondershare Recoverit.

Is it safe to move or merge partitions?

There are several ways to approach a damaged partition, including built-in repair tools and utilities such as CHKDSK in Windows computers, third-party software, and professional repair services. Please remember that fixing a damaged partition requires technical skill and experience, and any failed attempt may result in further loss. Unless you are confident in your abilities to perform a partition repair, you should leave this to a professional software or service.

Why should I convert MBR to GPT?

Data recovery and partition recovery are two related but distinct processes. We use data recovery to scan hard disks, SSDs, memory cards, and other storage devices for files that have been deleted or lost due to corruption. In this case, we are looking for individual files. In contrast, partition recovery is used when an entire partition with all its contents becomes lost or inaccessible. Rather than individual files, partition recovery helps locate and restore entire disk partitions.

Wondershare UBackit

Disk Partition Manager for Windows

Resize and optimize partitions to maximize disk space without losing data.

Migrate Windows system to a SSD or larger drive without reinstalling software.

Convert MBR to GPT seamlessly to meet Windows 11 and UEFI requirements.

Free Download Buy Now

Available for Windows 11 / 10 / 8.1 / 8 / 7

What Can UBackit Partition Manager Solve?

Partition Management

Resize and reallocate partitions to optimize disk layout and resolve low space issues without losing data.

System Migration

Migrate the operating system to an SSD or larger drive for seamless hardware upgrades without reinstalling Windows.

Converter MBR to GPT

Convert disk from MBR to GPT without data loss to meet UEFI and Windows 11 startup requirements.

Partition Management

Resize and reallocate partitions to optimize disk layout and resolve low space issues without losing data.

System Migration

Transfer your Windows system to a new SSD or larger drive seamlessly without data loss.

Converter MBR to GPT

Convert disk partition table from MBR to GPT to meet Windows 11 and UEFI boot requirements.

Common Scenarios for
Disk Partition

Extend C Drive When Disk Space Is Low

Expand the C drive to resolve low disk space issues and ensure smooth system performance.

Optimize Disk Layout

Reallocate unused or unallocated space to improve overall disk utilization and organization.

Manage Partitions Upgrade to SSD

Migrate data or system from HDD to SSD for faster performance and improved responsiveness.

Prevent Hard Drive Failure and Data Loss

Migrate your system or data to a new drive when the original disk shows signs of aging, errors, or potential failure.

Prepare Disk for Windows 11 Upgrade

Convert disk partitions and optimize layout to meet GPT and UEFI requirements for Windows 11.

Support Large Hard Drives Over 2TB

Convert partition style and manage disk space to fully utilize large-capacity drives beyond 2TB limits.

Extend C Drive When Disk Space Is Low

Optimize Disk Layout

Manage Partitions Upgrade to SSD

Prevent Hard Drive Failure and Data Loss

Prepare Disk for Windows 11 Upgrade

Support Large Hard Drives Over 2TB

Extend C Drive When Disk Space Is Low

Optimize Disk Layout

Manage Partitions Upgrade to SSD

Expand the C drive to resolve low disk space issues and ensure smooth system performance.

Reallocate unused or unallocated space to improve overall disk utilization and organization.

Migrate data or system from HDD to SSD for faster performance and improved responsiveness.

Migrate your system or data to a new drive when the original disk shows signs of aging, errors, or potential failure.

Convert disk partitions and optimize layout to meet GPT and UEFI requirements for Windows 11.

Convert partition style and manage disk space to fully utilize large-capacity drives beyond 2TB limits.

Support Large Hard Drives Over 2TB

Prepare Disk for Windows 11 Upgrade

Prevent Hard Drive Failure and Data Loss

Key Features for Disk Partition Manager

Partition Management: Optimize Disk Space with Ease

Reallocate and adjust disk space without deleting data or reinstalling the operating system. Improve disk layout and resolve low disk space issues efficiently.

Resize partitions (extend, shrink, or reallocate space) with flexibility
Allocate unallocated space to any target partition
Optimize overall disk layout for better space utilization
Perform all operations without deleting partitions or losing data

Free Download Learn More

System Migration: Upgrade Your Drive Without Reinstalling Windows

Migrate your entire Windows system to a new SSD or larger hard drive without reinstalling the OS, applications, or changing your workflow.

Automatically detect the current system disk and boot structure
Migrate Windows OS and all critical boot partitions completely
Ensure the new drive is fully bootable after migration
Support system transfer to SSDs or larger capacity drives

Free Download Learn More

Conversion: Convert MBR to GPT Without Data Loss

Upgrade your disk from MBR to GPT without formatting or reinstalling the system. Meet Windows 11 and UEFI boot requirements and securely.

Automatically detect the current partition style (MBR or GPT)
Convert MBR to GPT without wiping data
Ensure compatibility with UEFI boot mode
Prepare your system for Windows 11 upgrades and modern hardware

Free Download Learn More

Why Choose Wondershare UBackit

Feature Description		EaseUS Partition Master	4DDig Partition Manage	Minitool Partition Wizard
User Experience	Easy to Use	User Experience	Easy to Use	Relatively Complex
Resize / Move / Extend Partition
Clone Disk
Migrate OS to SSD/HDD
Convert MBR to GPT
Supports 10 Major Motherboard Brands
Estimated Operation Time / Progress
Feedback Channel
Smart Customer Support / AI Support	AI Assistant + Customer Support	AI Assistant + Customer Support	None	None
Data Integrity	High Integrity	High Integrity	Medium Integrity	High Integrity
Success Rate	High Success Rate	High Success Rate	High Success Rate	High Success Rate
Download & Installation Convenience	Easy Download Access	Complicated Download Process	Easy Download Access	Complicated Download Process
Pricing	$15.99/month	$29.95/month	$18.95/month	$59/year
Number of Licensed Devices	2 Devices Free Download	1 Device	1 Device	1 Device

Supported OS：

Windows 11, Windows 10, Windows 8.1, Windows 8, Windows 7, Windows Vista, Windows XP

Supported File Systems

NTFS, EXT2/3/4, FAT12/16/32, ReFS, exFAT

Supported Storage Devices

HDD: Parallel ATA (IDE), Serial ATA (SATA), External SATA (eSATA), SCSI, IEEE 1394 (FireWire)

SSD: SATA SSD, M.2 SSD, NVMe SSD, Large Capacity Hard Disk(GPT and MBR Disk)

Removable Devices: USB 1.0/2.0/3.0, flash drive, memory card, memory stick etc.
SCSI, IDE and SATA RAID Controllers, RAIDed Configurations (Hardware RAIDs)

How to Use Wondershare UBackit Partition Manager

Step 1: Identify and Select Disk

Launch UBackit and navigate to the Partition Management tab. Select the physical disk you wish to modify. Double-click the disk or click the Adjust Disk Layout option from the right pane to continue.

Step 2: Adjust the Disk Layout

Use the intuitive visual interface to drag the edges of your partitions. Alternatively, enter specific GB/MB values to precisely reallocate unallocated space from one volume to another.

Step 3: Initiate the Process

Review and confirm the partition layout. Once confirmed, click Next to execute the operation. Wait for the process to finish and view the updated disk layout. Once the progress bar reaches 100%, your disk will reflect the updated capacity instantly.

Step 1: Source & Destination Pairing

The software automatically detects your current operating system partition. Simply select your new target disk from the list of available drives for migration.

Step 2: Initiate Migration

Click Start Migration. UBackit creates a bit-for-bit replica of your system environment. Execute the migration process and your source system will be transfered to the target disk safely and completely.

Step 3: Boot & Run

After the process completes, shut down your computer and set the target disk as the primary boot device in your BIOS/UEFI settings.

Step 1: Select Target Disk

Choose the disk currently using the MBR partition style. UBackit will perform a quick health check to ensure the disk is ready for conversion.

Step 2: Safe Conversion

Click Convert. Unlike standard Windows tools that require you to delete all partitions, UBackit transforms the partition table while keeping your existing data intact.

Step 3: Verification

Once the conversion is finished, your disk is now compatible with UEFI boot mode and can support more than four primary partitions and massive storage volumes.

View Detailed Guide >>

Partition Manager FAQs

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Can I migrate Windows to SSD without reinstalling?

Yes. UBackit lets you migrate Windows to an SSD without reinstalling, transferring your OS, applications, and files automatically in just a few clicks—no technical skills required.

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Can I resize partition without losing data?

Yes. With non-destructive technology, UBackit allows you to resize or move partitions safely without data loss, so you can adjust disk space with confidence and ease.

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How do I extend the C drive?

Use Adjust Disk Layout for one-click expansion, or Resize/Move for manual control. Both options let you extend your C drive quickly and without affecting your data.

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Can I convert MBR to GPT without data loss?

Yes. UBackit enables seamless conversion between MBR and GPT without deleting data, helping you switch to UEFI mode and support larger drives without extra steps.

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What should I prepare before cloning a disk?

Before cloning, back up important data and ensure the target disk has enough capacity. UBackit will handle the cloning process efficiently, but all existing data on the destination disk will be overwritten.

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What should I prepare before resizing a partition?

Close unnecessary programs and make sure there is available space. If needed, UBackit can complete the operation in reboot mode to ensure a smooth and stable process.

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Will OS migration transfer the whole disk or only system files?

OS migration transfers only system-related partitions, including Windows and boot files, so you can move your system to a new disk faster without copying unnecessary data.

Hot Topics

Comprehensive How-to Guides

Want to learn more about Partition Recovery?

Learn More

How to Clone SSD to a Larger SSD with Recoverit

How Can I Convert MBR to GPT Without Deleting My Partitions?

How to Migrate Windows to Another Drive Without Reinstalling

How to Clean C Drive and Free Up Space on Windows 11

Disk Partition Manager for Windows

What Can UBackit Partition Manager Solve?

Partition Management

System Migration

Converter MBR to GPT

Partition Management

System Migration

Converter MBR to GPT

Common Scenarios for Disk Partition

Key Features for Disk Partition Manager

Partition Management: Optimize Disk Space with Ease

System Migration: Upgrade Your Drive Without Reinstalling Windows

Conversion: Convert MBR to GPT Without Data Loss

Why Choose Wondershare UBackit

Supported OS：

Supported File Systems

Supported Storage Devices

How to Use Wondershare UBackit Partition Manager

Partition Manager FAQs

? Can I migrate Windows to SSD without reinstalling?

? Can I resize partition without losing data?

? How do I extend the C drive?

? Can I convert MBR to GPT without data loss?

? What should I prepare before cloning a disk?

? What should I prepare before resizing a partition?

? Will OS migration transfer the whole disk or only system files?

Hot Topics

Comprehensive How-to Guides

Your best disk conversion and all-optimized solution for windows

Common Scenarios for
Disk Partition

?

Can I migrate Windows to SSD without reinstalling?

?

Can I resize partition without losing data?

?

How do I extend the C drive?

?

Can I convert MBR to GPT without data loss?

?

What should I prepare before cloning a disk?

?

What should I prepare before resizing a partition?

?

Will OS migration transfer the whole disk or only system files?

Your best disk conversion and all-optimized
solution for windows