Feature update to Windows 10, version 1709 fails to install

(1) I find "the moment I changed the boot order" to be unclear. Was that after you changed it in this thread to be the Windows Boot Manager (bootmgr)? This was your picture afterward...

Or was it before that? And it's gone now? Anyway, we'll try to get the ability back, if it has gone.

(2) I can't say it much better than I did before...

You already made the backup BCD:  "C:\BU\BCD Backup". Now...

(a) Plug in a Recovery USB drive or a Win 10 Installation media.

You couldn't make a Recovery USB drive. Were you able to make a Recovery DVD (Repair Disc)? If so, you may insert that. I'll repeat how to make that below.

(b) Reboot, & hold the Esc key as it boots just before or after the ASUS ROG Logo shows up..

     The UEFI boot option screen should appear.

(c) Choose the option that boots the USB media or the DVD media.

(d) If it's to the Installation USB, choose "Repair this computer"(instead of to install).

     The computer will reboot to the recovery environment.

(e) At the "Choose an option" screen, click "Troubleshoot > Advanced Options > Command Prompt".

(f) At the Command Prompt, type:   DIR  C:\BU  /a

                                        Also type:  BCDEdit

Do you see "BCD Backup" listed? If not, try letter D:, in case they have switched. Sometimes, the drive letters are different in the recovery environment. Which letter showed the file? Did you get output for BCDEdit, (just to prove it is there)?

(g) Close the Command Prompt, & click "Continue" to return.

If you don't do that - it will be on your head if you can't get there, if it should become necessary.

If/when necessary, to recover the backup BCD, you would enter:

BCDEdit  /Import  "C:\BU\BCD Backup"

Here is how to make a Recover DVD...

Try to make a Recovery DVD (Repair Disc), at "START, Settings, Update & Security, Backup, Go to Backup & Restore (Win 7)" (or ask Cortana for Control Panel, & select Backup & Restore)...

I have made a bootable USB drive w10 1709 version.

Dont get me wrong, but when I read your instructions, im actually scared to do it.  I mean, what if something goes wrong. I'm not a "genius" like you when it comes to PC. I dont know what to do afterwards

1. Anyway, I am confused on 

                                        DIR  C:\BU  /a

                                        Also type:  BCDEdit

How do I write the command? like this

                                                         DIR  C:\BU  /a     (do I press enter?)

                            (then enter this?)  BCDEdit

2. what happens

(g) Close the Command Prompt, & click "Continue" to return.

after continue? will my PC boot?

 (legs are shaking lol)

You are right to be cautious, beerus_king. But I can't keep saying the same thing over & over. If you can't manage to get to the Recovery Environment of external media & test it out from what I've already written thrice at least - well, you already asked whether a shop could do it. Yes, they can. You should ensure you have made a backup of all important personal files onto external media before giving the computer to them, though.

But I've decided to do a BCDBoot of my own, & will post the results later tonight, if I survive.

So - I did it & did survive. I put Z: onto the system partition & did:  BCDBoot C:\Windows /s z:/f all /v

(1) It cleaned up my BCD to some extent, but not completely. It left more junk than was removed. I should have renamed the BCD first, I think.

(2) It created a new folder on the system partition called "Boot" which doubled its size.

Directory of z:\

05/09/2017  12:25 AM    <DIR>          EFI

02/19/2018  10:06 PM    <DIR>          Boot

02/10/2018  12:37 AM           398,090 bootmgr

09/29/2017  08:41 AM                 1 BOOTNXT

               2 File(s)        398,091 bytes

I deleted that & the extra copy of BootMGR it had deposited in the root folder. To avoid this, I suggest you use "/f UEFI" - instead of "/f All". That extra stuff was to make the system folder compatible with MBR disks - but we two are both GPT.

(3) It turned OFF my recovery partition, but I turned it back on with ReagentC.

Here is what it did...

C:\WINDOWS\system32>BCDBoot C:\Windows /s z: /f all /v

BFSVC: ServiceBootFiles MuiOnly:n Res:y Fonts:y BootMgrOvw:n BootStatOvw:n DbgTrn:y SuspendBDE:n

BFSVC: Using source OS version a00003fab000f

BFSVC: Unable to open file \?\GLOBALROOT\Device\HarddiskVolume2\bootmgr for read because the file or path does not exist

BFSVC: Copying boot files CopyBootManager(Yes) C:\Windows\boot\PCAT -> \?\GLOBALROOT\Device\HarddiskVolume2\Boot

BFSVC: Unable to open file \?\GLOBALROOT\Device\HarddiskVolume2\Boot\bg-BG\bootmgr.exe.mui for read because the file or path does not exist

BFSVC: Unable to open file \?\GLOBALROOT\Device\HarddiskVolume2\Boot\bootmgr for read because the file or path does not exist

BFSVC: Unable to open file \?\GLOBALROOT\Device\HarddiskVolume2\Boot\bootvhd.dll for read because the file or path does not exist

BFSVC: Unable to open file \?\GLOBALROOT\Device\HarddiskVolume2\Boot\cs-CZ\bootmgr.exe.mui for read because the file or path does not exist

BFSVC: Unable to open file \?\GLOBALROOT\Device\HarddiskVolume2\Boot\cs-CZ\memtest.exe.mui for read because the file or path does not exist

BFSVC: Unable to open file \?\GLOBALROOT\Device\HarddiskVolume2\Boot\da-DK\bootmgr.exe.mui for read because the file or path does not exist

BFSVC: Unable to open file \?\GLOBALROOT\Device\HarddiskVolume2\Boot\da-DK\memtest.exe.mui for read because the file or path does not exist

BFSVC: Unable to open file \?\GLOBALROOT\Device\HarddiskVolume2\Boot\de-DE\bootmgr.exe.mui for read because the file or path does not exist

BFSVC: Unable to open file \?\GLOBALROOT\Device\HarddiskVolume2\Boot\de-DE\memtest.exe.mui for read because the file or path does not exist

BFSVC: Unable to open file \?\GLOBALROOT\Device\HarddiskVolume2\Boot\el-GR\bootmgr.exe.mui for read because the file or path does not exist

BFSVC: Unable to open file \?\GLOBALROOT\Device\HarddiskVolume2\Boot\el-GR\memtest.exe.mui for read because the file or path does not exist

BFSVC: Unable to open file \?\GLOBALROOT\Device\HarddiskVolume2\Boot\en-GB\bootmgr.exe.mui for read because the file or path does not exist

BFSVC: Unable to open file \?\GLOBALROOT\Device\HarddiskVolume2\Boot\en-US\bootmgr.exe.mui for read because the file or path does not exist

BFSVC: Unable to open file \?\GLOBALROOT\Device\HarddiskVolume2\Boot\en-US\memtest.exe.mui for read because the file or path does not exist

BFSVC: Unable to open file \?\GLOBALROOT\Device\HarddiskVolume2\Boot\es-ES\bootmgr.exe.mui for read because the file or path does not exist

BFSVC: Unable to open file \?\GLOBALROOT\Device\HarddiskVolume2\Boot\es-ES\memtest.exe.mui for read because the file or path does not exist

BFSVC: Unable to open file \?\GLOBALROOT\Device\HarddiskVolume2\Boot\es-MX\bootmgr.exe.mui for read because the file or path does not exist

BFSVC: Unable to open file \?\GLOBALROOT\Device\HarddiskVolume2\Boot\et-EE\bootmgr.exe.mui for read because the file or path does not exist

BFSVC: Unable to open file \?\GLOBALROOT\Device\HarddiskVolume2\Boot\fi-FI\bootmgr.exe.mui for read because the file or path does not exist

BFSVC: Unable to open file \?\GLOBALROOT\Device\HarddiskVolume2\Boot\fi-FI\memtest.exe.mui for read because the file or path does not exist

BFSVC: Unable to open file \?\GLOBALROOT\Device\HarddiskVolume2\Boot\fr-CA\bootmgr.exe.mui for read because the file or path does not exist

BFSVC: Unable to open file \?\GLOBALROOT\Device\HarddiskVolume2\Boot\fr-FR\bootmgr.exe.mui for read because the file or path does not exist

BFSVC: Unable to open file \?\GLOBALROOT\Device\HarddiskVolume2\Boot\fr-FR\memtest.exe.mui for read because the file or path does not exist

BFSVC: Unable to open file \?\GLOBALROOT\Device\HarddiskVolume2\Boot\hr-HR\bootmgr.exe.mui for read because the file or path does not exist

BFSVC: Unable to open file \?\GLOBALROOT\Device\HarddiskVolume2\Boot\hu-HU\bootmgr.exe.mui for read because the file or path does not exist

BFSVC: Unable to open file \?\GLOBALROOT\Device\HarddiskVolume2\Boot\hu-HU\memtest.exe.mui for read because the file or path does not exist

BFSVC: Unable to open file \?\GLOBALROOT\Device\HarddiskVolume2\Boot\it-IT\bootmgr.exe.mui for read because the file or path does not exist

BFSVC: Unable to open file \?\GLOBALROOT\Device\HarddiskVolume2\Boot\it-IT\memtest.exe.mui for read because the file or path does not exist

BFSVC: Unable to open file \?\GLOBALROOT\Device\HarddiskVolume2\Boot\ja-JP\bootmgr.exe.mui for read because the file or path does not exist

BFSVC: Unable to open file \?\GLOBALROOT\Device\HarddiskVolume2\Boot\ja-JP\memtest.exe.mui for read because the file or path does not exist

BFSVC: Unable to open file \?\GLOBALROOT\Device\HarddiskVolume2\Boot\ko-KR\bootmgr.exe.mui for read because the file or path does not exist

BFSVC: Unable to open file \?\GLOBALROOT\Device\HarddiskVolume2\Boot\ko-KR\memtest.exe.mui for read because the file or path does not exist

BFSVC: Unable to open file \?\GLOBALROOT\Device\HarddiskVolume2\Boot\lt-LT\bootmgr.exe.mui for read because the file or path does not exist

BFSVC: Unable to open file \?\GLOBALROOT\Device\HarddiskVolume2\Boot\lv-LV\bootmgr.exe.mui for read because the file or path does not exist

BFSVC: Unable to open file \?\GLOBALROOT\Device\HarddiskVolume2\Boot\memtest.exe for read because the file or path does not exist

BFSVC: Unable to open file \?\GLOBALROOT\Device\HarddiskVolume2\Boot\nb-NO\bootmgr.exe.mui for read because the file or path does not exist

BFSVC: Unable to open file \?\GLOBALROOT\Device\HarddiskVolume2\Boot\nb-NO\memtest.exe.mui for read because the file or path does not exist

BFSVC: Unable to open file \?\GLOBALROOT\Device\HarddiskVolume2\Boot\nl-NL\bootmgr.exe.mui for read because the file or path does not exist

BFSVC: Unable to open file \?\GLOBALROOT\Device\HarddiskVolume2\Boot\nl-NL\memtest.exe.mui for read because the file or path does not exist

BFSVC: Unable to open file \?\GLOBALROOT\Device\HarddiskVolume2\Boot\pl-PL\bootmgr.exe.mui for read because the file or path does not exist

BFSVC: Unable to open file \?\GLOBALROOT\Device\HarddiskVolume2\Boot\pl-PL\memtest.exe.mui for read because the file or path does not exist

BFSVC: Unable to open file \?\GLOBALROOT\Device\HarddiskVolume2\Boot\pt-BR\bootmgr.exe.mui for read because the file or path does not exist

BFSVC: Unable to open file \?\GLOBALROOT\Device\HarddiskVolume2\Boot\pt-BR\memtest.exe.mui for read because the file or path does not exist

BFSVC: Unable to open file \?\GLOBALROOT\Device\HarddiskVolume2\Boot\pt-PT\bootmgr.exe.mui for read because the file or path does not exist

BFSVC: Unable to open file \?\GLOBALROOT\Device\HarddiskVolume2\Boot\pt-PT\memtest.exe.mui for read because the file or path does not exist

BFSVC: Unable to open file \?\GLOBALROOT\Device\HarddiskVolume2\Boot\qps-ploc\bootmgr.exe.mui for read because the file or path does not exist

BFSVC: Unable to open file \?\GLOBALROOT\Device\HarddiskVolume2\Boot\qps-ploc\memtest.exe.mui for read because the file or path does not exist

BFSVC: Unable to open file \?\GLOBALROOT\Device\HarddiskVolume2\Boot\ro-RO\bootmgr.exe.mui for read because the file or path does not exist

BFSVC: Unable to open file \?\GLOBALROOT\Device\HarddiskVolume2\Boot\ru-RU\bootmgr.exe.mui for read because the file or path does not exist

BFSVC: Unable to open file \?\GLOBALROOT\Device\HarddiskVolume2\Boot\ru-RU\memtest.exe.mui for read because the file or path does not exist

BFSVC: Unable to open file \?\GLOBALROOT\Device\HarddiskVolume2\Boot\sk-SK\bootmgr.exe.mui for read because the file or path does not exist

BFSVC: Unable to open file \?\GLOBALROOT\Device\HarddiskVolume2\Boot\sl-SI\bootmgr.exe.mui for read because the file or path does not exist

BFSVC: Unable to open file \?\GLOBALROOT\Device\HarddiskVolume2\Boot\sr-Latn-RS\bootmgr.exe.mui for read because the file or path does not exist

BFSVC: Unable to open file \?\GLOBALROOT\Device\HarddiskVolume2\Boot\sv-SE\bootmgr.exe.mui for read because the file or path does not exist

BFSVC: Unable to open file \?\GLOBALROOT\Device\HarddiskVolume2\Boot\sv-SE\memtest.exe.mui for read because the file or path does not exist

BFSVC: Unable to open file \?\GLOBALROOT\Device\HarddiskVolume2\Boot\tr-TR\bootmgr.exe.mui for read because the file or path does not exist

BFSVC: Unable to open file \?\GLOBALROOT\Device\HarddiskVolume2\Boot\tr-TR\memtest.exe.mui for read because the file or path does not exist

BFSVC: Unable to open file \?\GLOBALROOT\Device\HarddiskVolume2\Boot\uk-UA\bootmgr.exe.mui for read because the file or path does not exist

BFSVC: Unable to open file \?\GLOBALROOT\Device\HarddiskVolume2\Boot\zh-CN\bootmgr.exe.mui for read because the file or path does not exist

BFSVC: Unable to open file \?\GLOBALROOT\Device\HarddiskVolume2\Boot\zh-CN\memtest.exe.mui for read because the file or path does not exist

BFSVC: Unable to open file \?\GLOBALROOT\Device\HarddiskVolume2\Boot\zh-TW\bootmgr.exe.mui for read because the file or path does not exist

BFSVC: Unable to open file \?\GLOBALROOT\Device\HarddiskVolume2\Boot\zh-TW\memtest.exe.mui for read because the file or path does not exist

BFSVC: GetFileAttributes(\?\GLOBALROOT\Device\HarddiskVolume2\Boot\BCD) failed: File not found.

BFSVC: GetFileAttributes(\?\GLOBALROOT\Device\HarddiskVolume2\Boot\BCD.LOG) failed: File not found.

BFSVC: Copying font files from C:\Windows\boot\Fonts to \?\GLOBALROOT\Device\HarddiskVolume2\Boot\Fonts...

BFSVC: Copying resource files from C:\Windows\boot\Resources to \?\GLOBALROOT\Device\HarddiskVolume2\Boot\Resources...

BFSVC: Unable to open file \?\GLOBALROOT\Device\HarddiskVolume2\Boot\Resources\bootres.dll for read because the file or path does not exist

BFSVC: Unable to open file \?\GLOBALROOT\Device\HarddiskVolume2\Boot\Resources\en-US\bootres.dll.mui for read because the file or path does not exist

BFSVC: Servicing debugger files

BFSVC: List of debugger files is empty

BFSVC: BfsInitializeBcdStore flags(0x0000021c) RetainElementData:n DelExistinObject:n

BFSVC: VolumePathName for C:\Windows is C:\

BFSVC: Opening template from \Device\HarddiskVolume4\Windows\System32\config\BCD-Template.

BFSVC: Opening store from \Device\HarddiskVolume2\boot\BCD

BFSVC: System BCD store does not exist, creating.

BFSVC: Creating General objects.

BFSVC: Creating Resume object.

BFSVC: Creating MemTest object.

BFSVC: Creating OsLoader object.

BFSVC: OsLoader identifier: {12559446-15eb-11e8-b080-74e6e2074932}

BFSVC: Removing duplicate entries.

BFSVC: Create BOOTMGR object RetainBootDefault:n

BFSVC: Setting {default} to {12559446-15eb-11e8-b080-74e6e2074932}

BFSVC: Cleaning up debugger settings.

BFSVC: ServiceBootFiles MuiOnly:n Res:y Fonts:y BootMgrOvw:n BootStatOvw:n DbgTrn:y SuspendBDE:n

BFSVC: Using source OS version a00003fab000f

BFSVC: Copying boot files CopyBootManager(Yes) C:\Windows\boot\EFI -> \?\GLOBALROOT\Device\HarddiskVolume2\EFI\Microsoft\Boot

BFSVC: Creating Recovery directory.

BFSVC: Copying font files from C:\Windows\boot\Fonts to \?\GLOBALROOT\Device\HarddiskVolume2\EFI\Microsoft\Boot\Fonts...

BFSVC: Copying resource files from C:\Windows\boot\Resources to \?\GLOBALROOT\Device\HarddiskVolume2\EFI\Microsoft\Boot\Resources...

BFSVC: Servicing debugger files

BFSVC: Copying boot debugging files from C:\Windows\system32 to \?\GLOBALROOT\Device\HarddiskVolume2\EFI\Microsoft\Boot (kd_*_*.dll)

BFSVC: Copying boot debugging files from C:\Windows\system32 to \?\GLOBALROOT\Device\HarddiskVolume2\EFI\Microsoft\Boot (kdstub.dll)

BFSVC: Done servicing debugger files.

BFSVC: BfsInitializeBcdStore flags(0x0000021c) RetainElementData:n DelExistinObject:n

BFSVC: VolumePathName for C:\Windows is C:\

BFSVC: Opening template from \Device\HarddiskVolume4\Windows\System32\config\BCD-Template.

BFSVC: Opening store from \Device\HarddiskVolume2\EFI\Microsoft\Boot\BCD

BFSVC: Creating General objects.

BFSVC: Creating Resume object.

BFSVC: Creating MemTest object.

BFSVC: Creating OsLoader object.

BFSVC: OsLoader identifier: {1669dd2e-15eb-11e8-b080-74e6e2074932}

BFSVC: Removing duplicate entries.

BFSVC: Removing duplicate object {140ab405-3491-11e7-a4a0-952787f57a8e}

BFSVC: Removing duplicate object {7254a080-1510-4e85-ac0f-e7fb3d444736}

BFSVC: Create BOOTMGR object RetainBootDefault:n

BFSVC: Setting {default} to {1669dd2e-15eb-11e8-b080-74e6e2074932}

BFSVC: Cleaning up debugger settings.

BFSVC: Opening recovery store from \Device\HarddiskVolume2\EFI\Microsoft\Recovery\BCD

BFSVC: Creating General objects.

BFSVC: Create BOOTMGR object RetainBootDefault:y

BFSVC: Setting {default} to {f12321ae-b3ff-11e7-9217-d7700d4f6e45}

Boot files successfully created.

C:\WINDOWS\system32>

wow man u survived. i have no idea on the fragments u have posted hehe...