Upgrading from HDD to SSD is the most effective way to speed up a Windows PC without reinstalling. In this guide you’ll clone Windows 10/11 step by step, keeping your apps and files. We’ll cover preparation, BitLocker, MBR/GPT, UEFI, 4K alignment, boot fixes and final checks. If you prefer a tried‑and‑tested tool, Acronis True Image (Cyber Protect Home Office) is available on Licensgo with support and instant digital delivery.

1What you need before cloning

- SSD and connection: check the interface supported by your PC (2.5" SATA or M.2 NVMe). On laptops check thickness and M.2 key; on desktops check SATA ports and power cables or an M.2 slot.

- Capacity planning: the SSD must hold the space actually used on the source drive. Remove large unnecessary files first.

- Back up first: always keep an up‑to‑date copy on an external drive or NAS before any disk operation. See our guide to practical backups: quick strategies to avoid data loss.

- Disk layout and boot mode: check whether the system disk is MBR or GPT (Disk Management) and whether the firmware uses UEFI with Secure Boot or legacy BIOS. Keep consistency during cloning to avoid boot issues.

- BitLocker: if encryption is enabled, suspend it on all system volumes before cloning to avoid key and bootloader conflicts. For an overview of the options, read Disk encryption vs file encryption: which to choose.

  • Windows 10/11 up to date and storage drivers in good order;
  • a USB–SATA adapter or a free M.2 slot to connect the SSD;
  • time: 30–120 minutes depending on data volume and interface speed.
Pause BitLocker

In Windows, open Settings > Privacy & security > Device encryption (or Control Panel > BitLocker Drive Encryption), choose “Suspend protection”, then clone.

2Step 1 — Prepare source and SSD

Free up space and fix errors on the source: uninstall unused apps, empty Downloads, run “chkdsk /f” on C:, and temporarily disable hibernation (“powercfg -h off”) to reclaim space. For a leaner system without reinstalling, see PC clean‑up and optimisation without reinstalling Windows.

Connect the SSD to the PC (USB–SATA dock for 2.5" or insert the M.2 module). Initialise it in Disk Management with the correct scheme (GPT recommended for UEFI). Do not create volumes if the cloning tool requires an empty target.

  • update the motherboard BIOS/UEFI and SSD firmware if available;
  • note the partitions on the source (EFI, MSR, Recovery, C:);
  • ensure AHCI/NVMe is enabled in firmware for best SSD performance.
Health check

If the HDD’s SMART shows reallocated/pending sectors, prefer an image‑and‑restore flow over live cloning to reduce read errors.

3Step 2 — Choose your cloning tool

Windows has no built‑in disk cloner. Reliable options include your SSD maker’s tools and professional suites. An excellent universal choice is Acronis True Image Advanced, which creates bootable media, clones disks (automatic or manual) and repairs boot records.

Prefer cloning from bootable USB to avoid locked files. Create the media from the tool, boot from USB and follow the wizard.

4Step 3 — Perform the clone (and 4K alignment)

In the cloner select the source disk (HDD) and the target (SSD). Choose proportional or manual layout, making sure to copy the system partitions (EFI/MSR/Recovery). Enable 4K alignment for SSDs.

If the SSD is smaller, first shrink C: in Disk Management so the used space fits. Avoid cloning unnecessary data such as archives or virtual machines; move them to an external drive.

  • carefully select source and target, double‑checking capacities and models;
  • choose proportional/manual copy and enable 4K alignment for SSDs;
  • start cloning and wait; when finished, power down the PC before removing drives.
Check alignment

After booting from the SSD, run “msinfo32” or use DiskPart (“list disk” > “select disk” > “list partition”). Offsets divisible by 4096 indicate correct 4K alignment.

5Step 4 — First boot and boot repair

Shut down, disconnect the old HDD (or change the boot order) and boot from the SSD. In UEFI, prioritise the entry that names the SSD/NVMe drive and keep Secure Boot as before.

If Windows doesn’t start, boot from Windows 10/11 USB, open Recovery > Command Prompt, then run: for UEFI/GPT: “bcdboot C:\Windows /l en-GB /s S: /f UEFI” (replace S: with the EFI partition letter). For BIOS/MBR: “bootrec /fixmbr”, “bootrec /fixboot”, “bootrec /rebuildbcd”.

Keep the old drive

Do not wipe the HDD until you’ve booted from the SSD for a few days without issues. It’s your fastest rollback.

6Step 5 — Final checks (TRIM, performance, security)

Enable and verify TRIM: in an elevated Command Prompt, “fsutil behavior query DisableDeleteNotify” should return 0. Leave “Optimise Drives” enabled for SSDs (it performs TRIM, not defragmentation).

Extend C: to use unallocated space on the SSD. Check storage drivers (NVMe/SATA AHCI) in Device Manager and update if needed. Then re‑enable BitLocker and store the recovery keys securely.

If you plan to upgrade the system, make sure you have a valid Windows 11 Professional licence beforehand, so activation remains straightforward after changes.

7If the new SSD is smaller

First reduce the source footprint: move videos/VMs to an external drive, empty Downloads/Temp, run Disk Clean‑up and shrink C: in Disk Management. Then choose proportional cloning. If needed, clone only the essential partitions and later create a separate data partition.

For professionals who also want image backups and bare‑metal restores, consider Acronis True Image Advanced to create an HDD image and restore it to the smaller SSD while resizing partitions.

After migration, for greater responsiveness review start‑up apps and services; for broader optimisations see the guide on cleaning and optimising Windows without reinstalling. And if you need a refresher on backup discipline, return to our practical backup strategies.