Modifying the Windows 7 boot loader with the Boot Configuration Data Editor tool. Sometimes dual- booting a system is a handy way to test new software, a new operating system, or an application that needs to be run in a specific version of Windows. Other reasons to dual- boot might include replication of a client environment. Windows handles dual- booting by using boot. In Windows Vista and later versions of Windows, the bootloader was moved from boot. BCDEdit. Recently, I decided I could make better use of some disk space that I had set aside to create a bootable VHD for Windows Server 2. R2. There was no data other than the OS installation contained within the file because I had used it only to prepare a blog post about booting from Virtual Hard Disks. To free up the space, I deleted the VHD. Note: Always make sure to back up any data that you want to keep before deleting or modifying partitions on VHDs. Your changes could make the partition unbootable. I had Windows 7 set as the primary OS, so I was not without a system. I started looking around for boot. Boot Configuration Data Editor (BCDEdit) as the utility to use when editing boot loader information in Windows 7 (and in Vista too). To begin, open the Start menu, select All Programs, and then choose Accessories. BIOS loads MBR boot program checks to see active partition Reads boot sector from CS 4410 at Cornell.To disable the menu, add a line that reads. Boot Options in a Boot.ini File. NTLDR loads the associated file listed in boot. If the boot loader timeout option in boot.ini is set to 0, the NTLDR boot menu. Exclusive Boot Features. Booting an Operating System. Windows 8), the IPL loads a program called NTLDR. Modifying the Windows 7 boot loader with the Boot Configuration Data Editor tool. This entry in the boot/grub/menu.lst file tells grub that the. The first program called after the kernel loads is located at. Right- click on Command Prompt and select Run As Administrator. Once in the command window, type bcdedit. This will return the current running configuration of your boot loader, showing any and all items that can boot on this system. To remove an entry, you will need to know the Boot Loader Identifier (found in curly braces in Figure A). At the command prompt, enter the following. Bcdedit /delete . When Windows starts, the only choice available in the boot menu should be the current Windows installation. Warning: Be careful when editing the boot configuration data. If you mistakenly remove the current instance of Windows, you may render your computer unbootable.
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January 2017
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