Win 10 deep loader4/9/2024 ![]() Some (mostly older) PCs use a Master Boot Record (MBR) disk layout and work with BIOS to perform what’s now called a “legacy boot.” Other (mostly newer) PCs use a GUID Partition Table (GPT) disk layout and work with UEFI to perform what’s called a “UEFI boot” or “EFI boot.” Some of the details involved in managing boot vary according to the type of boot (legacy vs. ![]() There are two major variations on the Windows boot theme. That boot loader accesses the EFI partition on the default or designated boot drive, and uses the BCD information to start booting the OS so it can take over control of the PC. When a PC begins booting, a firmware-based bootstrap loader starts the boot process and then hands the process over to the Windows Boot Loader (you’ll see this latter program referenced as a line item in your BIOS or UEFI boot information, usually as the default OS boot entry). You will also find a copy of this file in the Windows Side-by-Side (WinSxS) directory hierarchy. The BCD information resides in a data file named bootmgfw.efi in the EFI partition in the EFIMicrosoftBoot folder. In fact, BCD is best understood as a firmware-independent database for boot-time configuration data. Windows OS load behavior was substantially reworked in 2004, when Vista was still code-named “Longhorn” to support EFI and to overhaul the earlier NTLDR (“NT Loader”) architecture used in preceding versions of Windows NT. Use of boot configuration data, or BCD, and the Windows bootloader was introduced with Windows Vista. Understanding the modern Windows boot process 100 MB: This is the EFI (Extensible Firmware Interface) partition where Windows stores a copy of the boot loader, BCD and related logs, and other files for boot configuration and boot-up use. 450 MB: The default Windows Recovery (WinRE) partition, which includes a basic Windows runtime and various repair and recovery tools (see How to create a repair/recovery partition in Windows 10).Ģ. ![]() In the disk layout, the partitions may be described as follows, from left to right (1-4):ġ. But a secondary, recovery partition also gets written and may be accessed at boot time to support repair and recovery. The primary and most frequently used of these partitions is the operating system partition. For example, a default Windows OS clean install actually writes two bootable partitions to the drive that’s designated as the install target. It also establishes boot priority and timing when, as is typically the case, a PC can access two or more bootable partitions as it’s starting up. This critical information in the Windows runtime environment tells the Windows boot loader where to look for boot information. NET but that is entirely my personal preference.In the world of the Windows OS, BCD stands for Boot Configuration Data. I generally always enable Dark Mode and Install 3.5. Empty Desktop and Downloads (Past versions has deleted files from Desktop and Downloads).I recommend running this tool under the following conditions: It works very well and is typically more up to date than the above project. This is a new project that was brought to my attention, but has quickly made a name for itself. ![]() The project I use has been developed for many years now and is extremely good. Old Methods from Prior Videos that I no longer use This restore script pops up a GUI that lets you restore what you want to FACTORY DEFAULTS!
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