Lesson 5/9
Windows will not boot? Rebuilding the boot chain, step by stepI deliberately broke the boot partition to show you how to rebuild it cleanly, from scratch. Learn to repair a broken Windows boot system (EFI/UEFI). Every command is in the description: CheckDisk, SFC, DISM, BCD Boot, DiskPart. A complete solution, even for the worst cases. Commands tested on Windows 10/11.
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Contents
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0:00 Introduction - a machine that will not boot 0:28 System prerequisites (UEFI vs MBR) 0:42 Reaching Recovery mode (Shift + Restart) 1:00 Troubleshooting options and uninstalling updates 1:32 Handling BitLocker (manage-bde commands) 2:03 Checking the health of the hard disk 2:58 CheckDisk - integrity check (chkdsk /f) 3:13 Navigating to and locating user data 4:04 Backing up data with Robocopy 5:12 A safety backup before touching anything 5:50 Introduction to DiskPart (full video available) 6:23 Checking system files offline (SFC /scannow) 7:08 Repairing the Windows image (DISM /restorehealth) 8:28 Test - trying to boot 8:53 Deliberately breaking the EFI boot (demonstration) 9:03 DiskPart - selecting volumes and disks 10:00 Assigning a letter to the EFI partition 11:04 Deleting the EFI folder (simulating a serious failure) 11:45 The result - Windows no longer boots 12:08 The fix - downloading the Windows 11 ISO 12:42 Creating a bootable USB key 13:04 The BCD Boot command (rebuilding) 13:21 Full recap of the steps 14:23 Getting around in DOS (CD, DIR, commands) 15:25 Booting from the Windows installation media 15:49 Reaching repair mode from the ISO 16:13 DiskPart - reassigning the EFI partition 17:08 Checking the existing EFI partition 17:21 Rebuilding the boot with BCD Boot 17:44 Success - the boot files are created 18:00 Conclusion and full recap 18:40 Final word - sharing knowledge
