SCCM 2012 R2 PxE can't boot - your pc need to be repired.

Question

Dear All,
These days, I upgraded SCCM 2012 to R2 , after that PxE can't boot , and shows a blue screen that your pc need to be repired, same issue like this:http://www.gerryhampsoncm.blogspot.ie/2013/02/sccm-2012-task-sequence-fails-with-bcd.html
And, i have also re-configed the pxe more times follow by this acticle , and still failed.
And, after I replace the \RemoteInstall\SMSTemp\2014.01.08.12.31.26.01.{xxxxxxxxx}.boot.bcd to \RemoteInstall\Tmp\x86x64{xxxxxxx}.bcd, and the PC can boot to the winpe well. that means the pc using Tmp folder's BCD store
to boot to WinPE, and not using SMSTemp's.
I check the PxE process:http://technet.microsoft.com/en-us/library/cc722358(v=ws.10).aspx
PXEBoot.com downloads Bootmgr.exe and the BCD store, and I think PXEBoot.com should download BCD store from SMSTemp folder, and should not be the Tmp folder.
So, my question is that why te PXEBoot.com download BCD from Tmp folder ? And how can I change it to download BCD from SMSTemp folder. ? I have been getting to crazy about this fucking problem.
Nemo

Answer 1

Reinstalling WDS and the PXE was not the answer, at least not for me, but I dunno about the original poster as he kept quiet.
For now I am trying to get SCCM2012 R2 running as this is the topic for my final projekt.
But I am stuck here, the problem is the same as the original poster mentioned.
Even thougt DHCP options are set to my CM and smsboot\x86\wdsnbp.com, pxe keeps loading boot\... and fails.
Making a copy from smsboot to boot and renaming the file fixes it in a dirty way.
The WDS-service has never been configured manually, after rolling back to a fresh Server and installing CU1 first nothing changed about that (PXE worked at all at least) und reinstalling the living dead out of the roles and features fixes nothing.
The remoteinstall folder gets populated everytime, with the SMS related stuff and the wds related stuff, I guess (boot, SMSboot, ...).
I tried various variations of the start path, TFTP still loads from boot instead smsboot.
The Images have been temporarily replaced with the one from our old site.
I renewed the whole site, this bugs me since 2012 R1 and R2 is the second site too.
I would really appreciate it if someone could help with an working solution.
Let me know if you need some more informations, site is described below.
In case this should get another Thread, let me know.
Thank you guys :)
Hyper-V Environment, Windows Server 2012 R2 Standard on all three Hosts (Gen 2),
Followed mainly the MS TLG for SCCM2012 for this, supported by windows-noob.
Have a nice day.
Little Edit right here: renaming the file only helps with the 89 error thing, but it doesn't help booting the sccm image.