How To Install Windows on Another HDD/SSD (No USB Drive Required)

Installing Windows directly onto another HDD or SSD without using a USB drive is simpler than many expect. This guide walks you through the process step by step, ensuring a clean installation with minimal hassle.

Requirements

• A working Windows PC (secondary computer).
• The target HDD/SSD connected directly via SATA or NVMe.
• A Windows ISO (Windows 10 or 11, downloaded from Microsoft).
• WinToHDD software (the free version works fine for Home editions).

Install & Launch WinToHDD

• Download WinToHDD from the official EasyUEFI site.
• Install it and open the program.
• On the main interface, choose New Installation.

Select the ISO

• Browse to your Windows ISO file.
• WinToHDD will scan it and display available editions (Home, Pro, etc.).
• Select the edition you want to install.

Choose the Target Drive

• Select the HDD/SSD where Windows should be installed.
• Double‑check the drive size and name to avoid wiping the wrong disk.
• Choose the partition style:
  • MBR for legacy BIOS systems.
  • GPT for modern UEFI systems.

Installation Process

• Check options to bypass internet connection requirements and disable automatic device encryption if needed.
• Click Next and let WinToHDD apply the image.
• The process duration depends on drive speed.
• Once complete, the drive will have a fresh Windows installation ready.

Boot from the New Drive

• If using the same PC: enter BIOS/UEFI and set the new drive as the first boot device.
• If sending the drive to a client: they simply connect it to their PC.
• On first boot, Windows will continue with the Out-of-Box Experience (OOBE), region, keyboard, and account setup, just like a brand‑new system.

This method eliminates the need for a USB installer and provides a direct, efficient way to prepare a Windows-ready drive. With careful attention to drive selection and partition style, you can ensure a smooth installation every time.