missing disk after created a volume

I don't know what volume is and I accidentally create it after a bit annoyed with IRST pop-up and now supposed to have 2 disk drives which were Acer(C:) and Acer(D:) but ended up with only Acer(C:) drive. Most of my important stuff was in Acer(D:) and now i actually freaking out that i lost that disk. How can I recover the disk.....Hope you can help me with this problem...... But after doing some research, I have almost the same problem such as in this(https://forums.intel.com/s/question/0D50P0000490TMZSA2/hdd-d-disappeared-after-using-intel-rst?language=en_US) forum but the difference is my volume is recovery type(i think)

Image: https://us.v-cdn.net/6029997/uploads/editor/l3/4g8ftm5d04ex.png

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batmalin

Go to manage and delete the array, you got lucky and you will not loose any data as this is a RAID1. After that you can disable rst doing the steps below:

Click the Start Button and type cmd
Right-click the result and select Run as administrator
Type this command and press ENTER: bcdedit /set {current} safeboot minimal (ALT: bcdedit /set safeboot minimal)
Restart the computer and enter BIOS Setup
Change the SATA Operation mode to AHCI from either RST/IDE or RAID (Go to BIOS screen, move to Main tab, press Ctrl+S buttons together, press F10 to save and exit, AHCI option should be available in Main tab.)
Save changes and exit Setup and Windows will automatically boot to Safe Mode.
Right-click the Windows Start Menu once more. Choose Command Prompt (Admin).
Type this command and press ENTER: bcdedit /deletevalue {current} safeboot (ALT: bcdedit /deletevalue safeboot)
Reboot once more and Windows will automatically start with AHCI drivers enabled

batmalin

Oh, friendly advise - get rid of this Intel RST program after that.

Rafi3

Image: https://us.v-cdn.net/6029997/uploads/editor/z3/65p2r6vmg9pv.png

Side note of what I have done because I was too desperate to fix it myself:

I watched a youtube video( https://www.youtube.com/watch?v=-ZMuob2bEWQ&t=3s ). what I did is try to follow his instruction but in the first part(which is in bios), he tells to create a new raid array but I can't found how(maybe because Acer is different). the worst part is I change SATA from Intel optane something to something else(probably AHCI) because I think the problem comes from intel stuff(IRST). I can't boot my laptop after that. so I change it back to normal. After I can boot my laptop, I thought I fix the problem because now I have two disks in my file,(C:) and (D:) but no, (D:) is just (C:)'s duplicate. After that, I open IRST, something starts to happen. Before I did what I not supposed to do, it was just a normal IRST pop-up that tells me that my file is ok and now it's not ok because it says that something is degraded.
But today I did what you said(thanks btw because willing to help me) but I still didn't have my original (D:) disk. I still have the same (D:) as (C:)'s duplicate. plus I don't know whether if I want to delete IRST yet because my problem still not solved yet. Help me please and have a good day!

batmalin

Well, You still have to delete the array in the RST, but this time I can not asure you that you will not loose the information on it...

Rafi3

can you help me with that? I'm actually not willing to lose the information there but for me what's important now is I can use the (D:) disk worth 1TB of space or else I will had to use 118gb of my (C:) disk

batmalin

Go to manage in RST and delete the array, again do this on your own risk as you didn`t followed my instructions first and you have done something and the array doesn`t look like at the beginning.

Rafi3

The problem I'm having now is didn't actually know how to delete the array in RST(I really don't know how) because you told me to "Go to manage in RST and delete the array" but I can't find how. in the manage I only found 'advance' and when I click it only shows:

Image: https://us.v-cdn.net/6029997/uploads/editor/8q/lo1jg7t18c5w.png

and ya, after I follow your instruction to change SATA to AHCI it only shows one disk in RST.

really hope you can help me more.

batmalin

Well its too late maybe, go to windows disk management and look if its there

Rafi3

errr....now what i need to do?

Image: https://us.v-cdn.net/6029997/uploads/editor/ju/pmo16l6kca4z.png

batmalin

Hummm, this doesn`t looks right which disk is 1TB?

Rafi3

yea right!? I was also surprised that the disk management shows no sign of the 1 TB disk. do you know how to fix this?

Rafi3

I tried to rescan but nope...

batmalin

No, to be honest, not without eraseing the disk, but which disk? Provide a picture of the bios with the 2 disks.

Rafi3

I don't actually know which to pic but here is what I took

Image: https://us.v-cdn.net/6029997/uploads/editor/hv/bmss5blem2hg.jpg

Rafi3

is there any physical thing that I can do? I once open this laptop to install an 8gb ram stick. but, that about a few weeks back

batmalin

Physical, I don`t see what you can do except to disconnect the hdd and connect back. But since it is already visible in windows I don`t see any point.