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Lazesoft > Guides > Disk Clone

Disk Clone: upgrade or replace a hard drive / SSD without reinstalling Windows

Want to move Windows from an old HDD to a faster SSD? Need a bigger disk because you’re running out of space? Disk cloning copies your entire system (Windows, apps, settings, and files) to a new drive so you can boot normally—no reinstall.

Recommended for system disks: Use Offline Disk Clone (boot from Lazesoft boot disk) for the cleanest and safest result.
Offline cloning avoids locked system files and background disk writes that can interfere with cloning.

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Choose your guide

Upgrade a laptop hard drive or SSD without reinstalling Windows

Perfect for home users upgrading to a larger/faster drive. Clone the laptop system disk to a new SSD/HDD, replace the drive, and boot normally.

Home usersHDD → SSDOffline cloneKeep Windows & apps

Upgrade a Windows Server system disk without reinstalling

For administrators who need to migrate a Windows Server OS disk to a larger/faster drive with minimal downtime.

Windows ServerSystem disk migrationBoot reliabilityLess downtime

Disk Clone for technicians and IT professionals

Built for repair shops and service providers: upgrade client disks, migrate systems, and create disk images for backup and disaster recovery.

TechnicianUnlimited/BusinessRAID supportProfessional use

What you need (quick checklist)

  • A new SSD/HDD (or NVMe M.2 if your machine supports it)
  • USB enclosure/adapter for the new drive (SATA or NVMe)
  • A USB flash drive (recommended) or blank CD/DVD to create Lazesoft boot media
  • If BitLocker is enabled: have your recovery key

Typical cloning workflow (system disk)

  1. Create a Lazesoft bootable USB/CD.
  2. Connect the new drive via USB enclosure/adapter.
  3. Boot from Lazesoft media and run Disk Clone.
  4. Select source disk (old) and destination disk (new), then choose Fit to Target if upgrading to a larger drive.
  5. Shut down, swap drives, boot and verify.

Troubleshooting tips

  • UEFI/Secure Boot: if the boot USB doesn’t appear, temporarily disable Secure Boot or enable legacy/CSM (if available), then try again.
  • New drive not detected: try another USB port/cable, or a different enclosure (especially for NVMe).
  • Boot issues after cloning: re-check BIOS/UEFI boot order; for the first test boot, disconnect the old drive to avoid boot confusion.

More related guides

Create a bootable USB disk

How to boot from the created recovery CD/USB

Clone entire disk for upgrade or backup

More guides…

 

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