Question Help with an undeleting of a partition in DMDE

[PulpFiction]

Hello. I have an asus notebook, with windows 10 and with 2 partitions (c and d). I tried to move the contents of partition d to c, with copy and paste (not knowing that this is not how it is done). As a result, the PC no longer boot. Next day, when I opened it, I receive the message "an operating system was not found". I made a bootable usb with windows 10, trying to use repair. It didn't work. I went into CMD, I used most of the methods found on the internet to try to open the pc. Nothing worked. In the end, I opened DMDE.exe through cmd and here I got stuck. I put some pictures with the steps I've made. I am asking if someone can help me repair my PC, returning to the old partitions. I saw that the two partitions are healthy, but more than likely my os was on d and when I moved the contents of d to c, I messed something up. It seems that the data is there, it is not lost. If it is still needed of other details, please tell me. I'm ignorant of computers, so please be patient with me, I understand if things are clearly explained. Thanks in advance for any help.

 

[SkyNetRising]

I tried to move the contents of partition d to c, with copy and paste (not knowing that this is not how it is done).
As a result, the PC no longer boot.

You should never do that.

So - you moved bootloader files from one partition to another.
Bootloader got messed up and your system doesn't boot anymore.

Fix bootloader then.
Boot from windows installation media and execute following.

diskpart​

list disk​

select disk 0​

(select 931GB disk)​

list partition​

select partition x​

(select 500MB partition, this is bootloader partition, replace x with appropriate number - probably 1)​

active​

list volume​

(note drive letters for all volumes, in your screenshots you have E: - 500MB bootloader and C: - 931GB OS partition)​

exit​

bcdboot C:\windows /s E:​

Last message should be "Boot files created successfully".
Should be able to boot into windows after this.

 

[PulpFiction]

You should never do that.

So - you moved bootloader files from one partition to another.
Bootloader got messed up and your system doesn't boot anymore.

Fix bootloader then.
Boot from windows installation media and execute following.

diskpart​

list disk​

select disk 0​

(select 931GB disk)​

list partition​

select partition x​

(select 500MB partition, this is bootloader partition, replace x with appropriate number - probably 1)​

active​

list volume​

(note drive letters for all volumes, in your screenshots you have E: - 500MB bootloader and C: - 931GB OS partition)​

exit​

bcdboot C:\windows /s E:​

Last message should be "Boot files created successfully".
Should be able to boot into windows after this.

Yuppy! . After 6 month, my pc finally works. Thank you very much

 

[SkyNetRising]

You should probably remove drive letter from bootloader partition,
so you don't get tempted to mess bootloader again.

This can be done in Disk Management.
Right click on 500MB partition and choose "Change drive letter and paths" and
remove associated drive letter.