Secure Boot Messed UP My Computer

About this video

• Video Title: Secure Boot Messed UP My Computer
• Channel: CyberCPU Tech
• Speakers: [None specified]
• Duration: 00:16:23

Overview

This video provides a solution for users whose computers have become unbootable after attempting to convert their partition scheme from MBR to GPT to enable Secure Boot, particularly on systems without UEFI BIOS. The tutorial guides viewers through creating a bootable USB drive with Hiren's Boot CD, backing up data, and then using partition tools to convert the drive back to MBR. It also covers optional steps for cleaning up partitions and restoring the Windows recovery partition.

Key takeaways

• Problem Identification: Attempting to convert an MBR partition to GPT on a system without UEFI BIOS will render the computer unbootable.
• Solution Tool: Hiren's Boot CD, a lightweight version of Windows with diagnostic tools, is used to fix the issue.
• Preparation: A blank USB drive and access to another working computer are needed to create the bootable Hiren's Boot CD.
• Partition Conversion: The video demonstrates using Hiren's Boot CD's partitioning tools (specifically EaseUS Partition Master) to convert the GPT drive back to MBR.
• Data Backup: It is crucial to back up all important data before attempting any partition changes.
• Optional Cleanup: The tutorial includes optional steps to remove the Windows recovery partition and resize the main OS partition, and advises on restoring the recovery partition via an in-place upgrade.