How to Install an SSD and Migrate Windows Without Losing Data (2026)
Replacing an HDD with an SSD is the single most impactful upgrade you can make to an older computer. Your PC or laptop will boot in seconds and everything will run significantly faster. Here's how to do it without losing a single file.
What You Need
- A new SSD (SATA or NVMe depending on your system)
- A USB-to-SATA or USB-to-NVMe adapter (to temporarily connect the SSD externally)
- Cloning software: Macrium Reflect Free or Clonezilla
- Small screwdrivers
- 8+ GB USB drive (in case you need to reinstall)
Option A: Clone the Drive (Recommended)
Cloning copies your exact Windows installation, programs, and files to the new SSD. Nothing is lost.
Steps with Macrium Reflect Free
- Connect the new SSD to your PC via the USB adapter
- Download and install Macrium Reflect Free
- Select "Clone this disk" on your current drive
- Select the SSD as the destination
- Start the cloning process (may take 30–90 minutes depending on size)
- Once complete, shut down the computer
- Replace the HDD with the SSD inside the case
- Boot up and verify everything works
Option B: Clean Windows Installation
If you prefer a fresh Windows without old files:
- Back up all important files to an external drive
- Download Microsoft's Media Creation Tool
- Create a bootable USB with Windows 11
- Install the SSD in the computer
- Boot from USB and follow the installation wizard
- Activate Windows with your existing key
SSD Types: Which One to Install?
| Type | Connector | Speed | Best For |
|---|---|---|---|
| 2.5" SATA SSD | SATA | 500 MB/s | HDD replacement in older laptops |
| M.2 SATA SSD | M.2 (SATA) | 500 MB/s | Systems with M.2 slot without NVMe |
| NVMe M.2 SSD | M.2 PCIe | 3000–7000 MB/s | Modern systems, maximum performance |
How Do I Know Which Type My Laptop Needs?
- Check your laptop manual or search the model online
- Open the bottom panel and look at the available slot
- Use CPU-Z or Speccy to view storage slots
After Installing the SSD
- Enable TRIM: in CMD type
fsutil behavior set DisableDeleteNotify 0 - Disable automatic defragmentation for SSDs
- Verify the SSD is set to AHCI mode (not IDE) in BIOS
Conclusion
Installing an SSD can give an older computer 4–5 additional years of useful life. If you'd rather not do it yourself, Sistemas RJD offers professional SSD installation and migration services with guaranteed results.