Win2012 R2 Boot Configuration Data is missing

The Boot Configuration Data for your PC is missing or contains errors.

**
We have both options to solve this issue:

1.Run Startup Repair.
2.Rebuild the BCD file via the Bootrec.exe tool. **

Run Startup Repair

Steps

? Power off the VM.
? From the left side, go to VM Settings >hardware tab > CD/DVD > Browse.
? Locate the Windows Server R2 Media (ISO/DVD).
Note:it should be the same Windows Version, that already installed.

Set The default boot device to CD/DVD as the following:? Power on VMS > Press F2 to open Bios Setup > Boot Menu > Select CD-ROM drive and press + to go, and-to go down .
Press F10 to save and exit.

? The VM is rebooted with the default option CD/DVD.
? Press any key to boot from the CD/DVD.
? At the Windows Setup Dialog, set your appropriate settings > click Next.
? Click Repair Your computer > Troubleshoot > Command Prompt.
? Navigate to the Recovery folder by typing CD recovery > Press Enter.
? Run Startup repair by typing startrep.exe.
? Wait until the repair finished.

Unfortunately, in this case, the Startup Repair couldn ' t repair the issue! So we'll try to Rebuild the BCD file via the Bootrec.exe tool.

Rebuild the BCD file via the Bootrec.exe Tool

Steps
? Again, click Repair your computer > Troubleshoot > Command Prompt.
? Type the below command to rebuild he Bcd file.

bootrec /RebuildBcd

? Once the operation completed successfully > close the command prompt.
? Click Continue to Exit and Continue to Windows Server 2012.
? The BCD file should is now rebuilt and the Windows should is working properly.

https://social.technet.microsoft.com/wiki/contents/articles/40265. Windows-server-2012-the-boot-configuration-data-for-your-pc-is-missing-or-contains-errors.aspx

Win2012 R2 Boot Configuration Data is missing