Can't Find Real Mode Boot Sector

I am trying to install Ubuntu alongside Win 8.1. I could create the partition and install Ubuntu. But upon restarting, I got "Missing: \ubuntu\winboot\wubildr.mbr" error. I looked up to solve this error and somewhere I found that deleting the ID from Real-Mode Boot Sector would help. I gave it a try(unfortunately, I did not store the identifiers). And now, it is directly going to Windows(No options for choosing Ubuntu).

The 'bcdedit' on the command prompt looks like this:

C:\Windows\system32>bcdedit

Windows Boot Manager
--------------------
identifier              {bootmgr}
device                  partition=\Device\HarddiskVolume1
path                    \EFI\Microsoft\Boot\bootmgfw.efi
description             Windows Boot Manager
locale                  en-US
inherit                 {globalsettings}
integrityservices       Enable
default                 {current}
resumeobject            {b27c8765-a1b7-11e4-8f68-ca0d32a621a3}
displayorder            {current}
toolsdisplayorder       {memdiag}
timeout                 10

Windows Boot Loader
-------------------
identifier              {current}
device                  partition=C:
path                    \Windows\system32\winload.efi
description             Windows 8.1
locale                  en-US
inherit                 {bootloadersettings}
recoverysequence        {b27c8767-a1b7-11e4-8f68-ca0d32a621a3}
integrityservices       Enable
recoveryenabled         Yes
isolatedcontext         Yes
allowedinmemorysettings 0x15000075
osdevice                partition=C:
systemroot              \Windows
resumeobject            {b27c8765-a1b7-11e4-8f68-ca0d32a621a3}
nx                      OptIn
bootmenupolicy          Standard

C:\Windows\system32>

How do I get back the identifiers(instead of displaying just {current}) and the Real-Mode Boot Sector? Any help would be greatly appreciated. Thanks in advance.