How to Clone a Hard Drive Without Removing It

What “without removing it” means

The source drive can stay inside the PC while a second drive is connected to a spare internal port or a compatible USB enclosure. Windows may remain running if the cloning tool supports it, but the target must be visible as a separate disk. Do not confuse this with copying a running C: folder; boot partitions and consistent system data require a proper clone or image.

Check connection and space

Step 1. Confirm the new drive's interface (SATA versus NVMe), physical fit, and capacity. Use a powered connection for large drives and keep the laptop on AC power.

Step 2. Back up important files and confirm the source is healthy. In Disk Management record both devices by model and capacity. Copy existing target files elsewhere.

Step 3. Close large writes and suspend encryption only if your documented BitLocker procedure requires it; keep the recovery key. A fresh SSD does not need to be manually formatted before a full-disk clone.

After the clone

If the goal is an upgrade, shut down, install the new drive in the intended boot slot, and test it with the old drive disconnected. For a secondary copy, mount and verify several files. Do not call a permanently connected clone a full backup: subsequent malware or mistakes may affect both drives.

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Step 1. Connect both drives and open Tools and utilities > Disk/Partition clone. Choose the whole source disk when all partitions must move.

Step 2. Select the source by model and capacity and click Next. The example image highlights a data disk; select your actual source, which may be a different disk.

Step 3. Select the destination and click Next. Verify it a second time because its partitions and existing files will be overwritten.

Step 4. Review the complete source-to-target layout. Check all partitions, especially EFI and recovery partitions for a Windows boot disk. If the target is an SSD, choose SSD optimization when available and appropriate.

Step 5. Click Proceed, confirm the overwrite warning, and wait for completion. Verify copied files or boot the target independently before changing the source.

Conclusion

Leave the source installed, attach a compatible target, identify the direction carefully, and test the resulting disk before making hardware changes.

Related Articles

• Windows Cloning Tutorials
  Explore Windows disk, system, and SSD migration topics.
• Windows Disk Backup and Restore Tutorials
  Compare migration with a separate disk image.

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