Hardware⏱️ 3 min read📅 2026-05-29

How to Fix: Boot loop and BSOD after attempting to reinstall Windows 11 on a brand new

New Lenovo Legion Pro 7 with RTX 4090 and WD BLACK SN850X SSD experiencing boot loop and BSOD after reinstalling Windows 11.

Quick Answer: Check the SSD's firmware to ensure it's compatible with your system, and try using a different SATA port or cable to rule out any issues.

📋 Table of Contents

  1. ⚠️ Common Causes
  2. 🛠️ Step-by-Step Verified Fixes
  3. 💡 Conclusion

The boot loop and BSOD (Blue Screen of Death) issue you're experiencing after attempting to reinstall Windows 11 on your brand new Lenovo Legion Pro 7 16ARX8H 82WSCTO1WW with a WD BLACK SN850X 2TB SSD is likely caused by one of the following reasons:

⚠️ Common Causes

  • The SSD was not properly installed or recognized by the system.
  • There might be a conflict between the new SSD and the existing BIOS settings.
  • Incorrect disk partitioning or formatting may have caused the issue.

🛠️ Step-by-Step Verified Fixes

Method 1: Reinstalling Windows from a USB Drive

  1. Step 1: Create a bootable USB drive using the official Windows installation media.
  2. Step 2: Restart your computer and enter the BIOS settings. Set the USB drive as the first boot device and save changes.
  3. Step 3: Reboot from the USB drive and follow the on-screen instructions to reinstall Windows 11.

Method 2: Updating UEFI Firmware

  1. Step 1: Download the latest UEFI firmware from Lenovo's official website.
  2. Step 2: Open the UEFI settings and update the firmware to the latest version.
  3. Step 3: Save changes and reboot your computer. This may resolve any BIOS-related issues.

Method 3: Reformatting the SSD

  1. Step 1: Open Disk Management and select the WD BLACK SN850X 2TB SSD.
  2. Step 2: Right-click on the drive and select 'Format' to reformat it with a different file system (e.g., NTFS).
  3. Step 3: After formatting, restart your computer and follow the on-screen instructions to reinstall Windows 11.

💡 Conclusion

By following these steps, you should be able to resolve the boot loop and BSOD issue and successfully reinstall Windows 11 on your Lenovo Legion Pro 7 16ARX8H 82WSCTO1WW with a WD BLACK SN850X 2TB SSD. If you're still experiencing issues, consider seeking further assistance from Lenovo support or a professional technician.

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