Update KB2977320 returns error A7F8CE4 or 80070002

Hi. I have tried multiple time times to install this update and am currently out of options.
My rig is x64 windows 8.1.
Solutions tried so far:
sfc /scannow
dism /online /cleanup-image /restoreHealth
dism /online /cleanup-image /startcomponentcleanup

Both the commands show there's no corrupted files in the system.
So then i tried re-installing SQL Server 2008 R2 SP2 and then installing SP3. Then I tried Fix Windows Update, all to no avail. What should i do now?

Tech Support Guy System Info Utility version 1.0.0.2
OS Version: Microsoft Windows 8.1 Pro, 64 bit
Processor: Intel(R) Core(TM) i7-4790K CPU @ 4.00GHz, Intel64 Family 6 Model 60 Stepping 3
Processor Count: 8
RAM: 8133 Mb
Graphics Card: NVIDIA GeForce GTX 970, -1 Mb
Hard Drives: C: Total - 121900 MB, Free - 87219 MB; D: Total - 953739 MB, Free - 723740 MB;
Motherboard: ASUSTeK COMPUTER INC., Z97-DELUXE
Antivirus: Bitdefender Antivirus, Updated: Yes, On-Demand Scanner: Enabled