Setting up a dual boot system with Windows on one drive and Linux on another is an excellent way to enjoy the benefits of both operating systems without compromising performance. Unlike single-drive dual boot setups that rely on GRUB bootloader, this method uses the BIOS boot menu for OS selection, offering better stability and easier maintenance.

In this guide, we’ll walk through two methods for setting up a dual-drive dual boot system, ensuring Windows remains untouched while Linux runs independently.

Why Choose a Dual-Drive Dual Boot?

✅ No GRUB interference – Windows boots directly without a secondary bootloader.
✅ Easy removal – Simply unplug the Linux drive if you no longer need it.
✅ Better stability – Windows updates won’t break the Linux bootloader.
✅ Full hardware access – Both OSes run natively, unlike virtual machines.

Prerequisites

• Two storage drives (one for Windows, one for Linux).
• A bootable USB drive with your preferred Linux distro (e.g., Linux Mint).
• Backup your data – Modifying partitions can lead to data loss.

Method 1: Disconnecting the Windows Drive During Linux Installation (Recommended)

Step 1: Physically Disconnect the Windows Drive

1. Shut down your PC and unplug the power cable.
2. Disconnect the Windows drive (either by removing the M.2 SSD or unplugging the SATA/power cable).

Step 2: Install Linux on the Second Drive

1. Boot from the Linux USB (press F12 or DEL to access the boot menu).
2. Run the Linux installer and select “Erase disk and install Linux” (since only the second drive is connected).
3. Complete the installation and restart the PC.

Step 3: Reconnect the Windows Drive

1. Shut down the PC and reconnect the Windows drive.
2. Boot into BIOS (DEL or F2) and set Windows as the default boot option.
3. Use the BIOS boot menu (F12 or similar) to switch between Windows and Linux.

✅ Advantage: No GRUB interference—Windows boots directly.

Method 2: Installing Linux Without Disconnecting the Windows Drive

If you can’t disconnect the Windows drive, follow this alternative method:

1. Boot from the Linux USB.
2. Select “Something else” in the installer to manually partition.
3. Choose the second drive (e.g., /dev/sdb) for Linux installation.
4. Set the bootloader to install on the Linux drive (not the Windows drive).
5. Complete the installation.

⚠ Note: Some Linux installers may still place GRUB on the Windows drive. To avoid this, Method 1 (disconnecting the drive) is safer.

Single-Drive Dual Boot (For Comparison)

If you install Linux alongside Windows on the same drive, you’ll use GRUB bootloader, which has some downsides:

❌ Slower Windows boot (GRUB loads first).
❌ Risk of corruption (Windows updates can break GRUB).
❌ Harder to remove Linux (requires manual GRUB removal).

Final Thoughts

A dual-drive dual boot is the best way to run Windows and Linux side by side. By keeping each OS on a separate drive, you avoid bootloader conflicts and maintain system stability.

🔗 Download Linux Mint: https://linuxmint.com
🔗 Rufus (for bootable USB): https://rufus.ie

Tags:

Dual Boot, Windows and Linux, Linux Installation, BIOS Boot Menu, GRUB Alternative

Hashtags:

DualBoot #WindowsLinux #TechGuide #LinuxMint #PCSetup

Disclaimer: Modifying partitions can lead to data loss. Always back up important files before proceeding. If unsure, consult a professional.

Arjun Nair

Arjun is a seasoned Linux enthusiast and open-source contributor. He has worked with multiple distributions including Debian, Fedora, and Arch-based systems, and regularly tests new desktop environments and community projects. With over a decade in IT system administration, Arjun brings practical, hands-on insights to Linux tutorials and reviews.

Website · More from this author