You have a server named Server1 that runs Windows Server 2012 R2.
When you install a custom Application on Server1 and restart the server, you receive the following error message: "The Boot Configuration Data file is missing
some required information.
Error code: 0x0000034."
You start Server1 by using Windows RE.
You need to ensure that you can start Windows Server 2012 R2 on Server1.
Which tool should you use?
Bootrec.exe tool to troubleshoot "Bootmgr Is Missing" issue. The /ScanOs option scans all disks for installations that are compatible with Windows Vista or
Windows 7. Additionally, this option displays the entries that are currently not in the BCD store. Use this option when there are Windows Vista or Windows 7
installations that the Boot Manager menu does not list.
Error code 0x0000034 while booting.
Put the Windows Windows 7 installation disc in the disc drive, and then start the computer.
Press any key when the message indicating "Press any key to boot from CD or DVD …". appears.
Select a language, time, currency, and a keyboard or another input method. Then click Next.
Click Repair your computer.
Click the operating system that you want to repair, and then click Next.
In the System Recovery Options dialog box, click Command Prompt.
Type Bootrec /RebuildBcd, and then press ENTER.
A. Bootsect.exe updates the master boot code for hard disk partitions to switch between BOOTMGR and NTLDR. You can use this tool to restore the boot sector
on your computer. This tool replaces FixFAT and FixNTFS.
D. The bootcfg command is a Microsoft Windows Server 2003 utility that modifies the Boot.ini file.
References: Bootsect Command-Line Options