Software⏱️ 2 min read📅 2026-05-29

How to Fix: INACCESSIBLE_BOOT_DEVICE BSOD after cloning a drive, but only when the old

Clonezilla issue with inaccessible boot device, Windows installation media and Startup Repair failed to fix the problem.

Quick Answer: Try using a different cloning software or method, such as Acronis True Image or a bare-metal clone. Also, check if the new drive is properly detected by the BIOS and if there are any conflicts between the old and new drives.

The INACCESSIBLE_BOOT_DEVICE BSOD occurs when the boot process attempts to load the operating system from a device that is not accessible or has been corrupted. In your case, the issue arises after cloning a drive and connecting the old SATA SSD while the new NVMe SSD boots successfully.

⚠️ Common Causes

  • Corrupted or incomplete clone process
  • Boot sector issues on the new drive
  • Conflicting MBR/EFI configurations between old and new drives

🛠️ Step-by-Step Verified Fixes

Method 1: Rebuild the Boot Sector

  1. Step 1: Boot from a Windows installation media and open Command Prompt as administrator.
  2. Step 2: Type the command `bootrec /fixmbr` and press Enter to rebuild the Master Boot Record (MBR).
  3. Step 3: Type the command `bootrec /rebuildbcd` and press Enter to recreate the boot configuration data.

Method 2: Update the Boot Configuration Data

  1. Step 1: Boot from a Windows installation media and open Command Prompt as administrator.
  2. Step 2: Type the command `bcdedit /set {default} bootorder \

Did this fix your problem?

If not, try searching for specific error codes.

🔍 Search Error Database

❓ Frequently Asked Questions