ASUS laptop ROG Strix Scar 2 OS/BIOS problem. Stuck on BIOS loop after having to wipe OS (Windows 11) due to software issue triggering automatic repair.

Understanding and Resolving BIOS Boot Loop Issues on the ASUS ROG Strix Scar 2 Following Operating System Reinstallation

Introduction

Experiencing startup problems after performing a Windows OS reset or reinstallation can be both frustrating and confusing. This article aims to provide a detailed overview of such issues, specifically focusing on the ASUS ROG Strix Scar 2 laptop encountering a BIOS boot loop following a Windows 11 OS wipe. We will explore the common causes, attempted solutions, and advanced troubleshooting steps to resolve these problems effectively.

Scenario Overview

A user reports encountering a persistent BIOS boot loop after formatting the system drive and reinstalling Windows 11 due to a software malfunction that triggered automatic repair processes. The sequence of events is as follows:

• The laptop experienced startup failures, activating automatic repair.
• Multiple reset attempts, including partial resets preserving data and full resets, failed to resolve the issue.
• The user accessed the recovery environment, used command prompt tools such as CHKDSK and DISKPART to wipe the drives.
• Post-operations, the system reboots to BIOS, but no bootable devices are detected, and the boot menu indicates an absence of boot options.
• External boot drives are recognized at times, but standard boot procedures fail, and BIOS settings regarding legacy mode are elusive or unchangeable.

Potential Causes

Several factors can contribute to a BIOS boot loop after OS reinstallation, including:

1. Incorrect Boot Mode Settings: Legacy mode vs. UEFI mode misconfiguration can prevent the system from recognizing bootable devices.
2. Missing or Corrupted Boot Files: Wiping the drive during disk operations may have erased essential EFI partitions or bootloader files.
3. Drive Partition Issues: Improper partitioning or formatting may lead to an unbootable state.
4. Hardware Malfunctions: Though less common, hardware issues such as faulty drives or memory problems can manifest during such processes.

Troubleshooting and Resolution Strategies

1. Access BIOS Settings

2. Power on the laptop and press the BIOS access key (often F2 or DEL during startup).

3. Check the boot mode (UEFI vs. Legacy). For modern Windows installations, UEFI mode is preferred.
4. Ensure that the disk with the OS is recognized and prioritized in the boot order.

5. If UEFI boot mode is enabled, verify that Secure Boot is disabled if necessary for your installation.

6. Rebuild the Boot Configuration

Using a Windows installation media