having trouble fixing error 0xc0000017 (advanced startup)

Question

Hi so, i tried booting into (unpaid, currently) windows 10's command prompt via advanced start up and got the error 0xc0000017. upon googling how to fix it and finding this  post, i completed the task but halfway through had some trouble with command prompt (code text below as i cannot attach a screenshot) i haven't exactly tried much but my next bet was to just replace my RAM

C:\Windows\system32>bcdedit /enum all 

Windows Memory Tester  
---------------------  
identifier              {memdiag}  
device                  partition=C:  
path                    \boot\memtest.exe  
description             Windows Memory Diagnostic  
locale                  en-GB  
inherit                 {globalsettings}  
badmemoryaccess         Yes 
RAM Defects  
-----------  
identifier              {badmemory} 
 
Global Settings 
---------------  
identifier              {globalsettings}  
inherit                 {dbgsettings}  
                      {emssettings}  
                      {badmemory} 

C:\Windows\system32>bcdedit /deletevalue {badmemory} badmemorylist  
An error occurred while attempting to delete the specified data element.  
Element not found. 

Answer 1

Thanks for bringing this up. Let’s walk through the real root of the issue, and no, you shouldn’t replace your RAM just yet.

Try to run this command instead,

bcdedit /delete {badmemory}

If that works, restart and retry Advanced Startup. Now if it throws any error move to the next step.

The next step will require to use of a bootable USB.

Create a Windows 10 USB using the Media Creation Tool on another PC

Boot into the USB

Click Repair your computer > Troubleshoot > Advanced options > Command Prompt

Run these commands

bootrec /fixmbr

bootrec /fixboot

bootrec /scanos

bootrec /rebuildbcd

Restart and try again. If still failing,

bcdedit /enum {globalsettings}

If you see an inherent line that includes {badmemory}, run this command

bcdedit /set {globalsettings} inherit {dbgsettings} {emssettings}

That tells Windows to stop inheriting {badmemory}.

As a last resort, if it’s still acting up and you can't access recovery

Boot into your Windows USB again > Command Prompt

Try to rename the BCD store and rebuild

ren C:\boot\bcd bcd.old

bcdboot C:\Windows /s C: /f ALL

Let me know which step you’re on or if you get stuck.

Answer 2

I understand the situation. I'd like to confirm,

• Can you boot into normal Windows 10, or does the error happen before that?
• Can you access the Advanced Startup menu, such as the blue screen with options like Troubleshoot, Startup Repair, etc.?
• Can you open Command Prompt from Safe Mode or Recovery?

Let me know, we can try some repairs without needing a USB. However, if this is still failing, I would recommend borrowing one or purchasing a USB drive that we can use to repair your computer.

Answer 3

Thanks for confirming, Vidzxro. Since you can boot into Windows normally we can try some troubleshooting to fix it.

Step 1) If the those commands I have provided didn't work, try this in command prompt as administrator from the normal desktop.

bcdedit /delete {badmemory}

If it says successful, restart your PC and test if Advanced Startup’s Command Prompt now opens.

Step 2) If badmemory is still listed under globalsettings, try this command

bcdedit /set {globalsettings} inherit {dbgsettings} {emssettings}

Restart and test again.

Step 3) If this fails again, we can use your 7GB USB. Please make sure to backup your data from the USB since we need to reformat it. Once done, here’s what you can do

Plug the USB into a working PC.

Download the Media Creation Tool from Microsoft

https://www.microsoft.com/software-download/windows10

Use it to create a bootable Windows 10 USB.

On your affected PC, boot into that USB:

Choose Repair your computer

Go to Troubleshoot > Advanced Options > Command Prompt

Then run these commands in order

bootrec /fixmbr

bootrec /fixboot

bootrec /scanos

bootrec /rebuildbcd

If any of those commands fail (especially /fixboot), let me know the error so I can guide you further.

If everything else fails, run this in the recovery Command Prompt

ren C:\boot\bcd bcd.old

bcdboot C:\Windows /s C: /f ALL

This renames the current BCD store and creates a new one from scratch.

This normally works from other users I helped with and including with my own setup. Let me know how far you get with this.

Answer 4

Got it! Thanks for the update. We can try some walkarounds to fix this.

Step 1) From the recovery Command Prompt, type

diskpart

And then

list disk

Identify your main drive. It is usually disk 0, then type

select disk 0

Make sure to enter the right disk number of your Windows. And then enter this command

list partition

Look for the EFI System Partition and usually around 100–300MB, FAT32. Select it and enter

select partition (number)

Assign a temporary drive letter

assign letter=S:

exit

Step 2) Once done, we can rebuild it.

Run the following

bcdboot C:\Windows /s S: /f UEFI

If your Windows drive isn’t C:, adjust accordingly.

This command copies the necessary boot files to the EFI partition and rebuilds the bootloader from scratch.

After that’s done. Restart your PC and remove the USB when the logo shows up.

Then try going back into Advanced Startup and see if the Command Prompt opens properly this time.

Let me know how it goes or if you run into anything unclear while checking the partitions.

Answer 5

in an attempt to follow your instructions, i struggled to find the EFI System partition within the disks. im not sure if i inputted a wrong command, but i reattempted multiple times and to no avail. heres the partitions it shows me.

(the disks are in number order: 0, 1, 2)