MANUAL EASYBCD 2.0 HOW TO
MANUAL EASYBCD 2.0 CODE

A file called BOOT.INI stores information regarding the physical location(s) of your various Windows NT-based installations.NTDETECT.COM must be present in the root of the active partition on disk 0, together with BOOT.INI, or else Windows XP will fail to load. Without NTDETECT.COM, NTLDR cannot access your hard drives and load Windows. NTLDR uses a file called NTDETECT.COM to detect and configure access to the various hardware components of your machine.If there is only one such legacy entry, no menu will be displayed. Once NTLDR has finished calling these child processes, it will display a second menu which gives you a choice of which Windows NT-based operating system to load. This 16-bit program calls up several other files that need to be in the same root directory of the single active partition on the primary boot disk that carry out of the different tasks needed to get your system up and running: NTLDR is stored in the root of the FAT16, FAT32, or NTFS partition set as active and primary. NTLDR then loads the older version of Windows. As a work around, Microsoft configured bootmgr to load the old NTLDR boot menu, which will then display its own list of legacy operating systems, according to boot.ini.

MANUAL EASYBCD 2.0 HOW TO

NTLDR, NTDETECT, and BOOT.INIWhile the new Windows Vista/7 bootloader (known as bootmgr) can load Windows Vista and up directly 1, it doesn't know how to start up older versions of Windows. The first part of this procedure is depicted below:

usually by loading yet another binary file which initializes the environment bringing the machine out of real mode and into protected mode with virtual memory and launches the kernel.

MANUAL EASYBCD 2.0 CODE

The code in the bootsector is then run, which typically loads a binary file from the root of the same active partition, which typically presents the user with a menu of operating systems to boot from (assuming there is more than one) and proceeds to boot into the selected OS. The MBR then loads some more binary code in the bootsector of the active partition on that same disk. When you power on your PC, the BIOS is loaded which first detects and initializes basic hardware, then loads a small amount of binary code stored in the MBR of the primary boot disk. The Boot ProcessRegardless of what your booting - and even what bootloader you are using - the basic boot process starts off in the same way. Unfortunately, as a result of the convoluted process used to load Windows NT through XP/2003 up and running, there is plenty of room for confusion and error.

Manual easybcd 2.0