Windows 10: Switch up my C and D drive

Hello, I have decided to reinstall my Windows 10, because previously my windows has installed on C drive - which is for some reason 1TB HDD, and then D drive - which is 128 SSD.

I would like to ask how can I switch these two so my windows can install on SSD marked as C Drive.

:)

 

Boot error INACCESSIBLE_BOOT_DEVICE, drive letters C: and D: switched

Hi,

Thanks for the reply. I did as suggested, but it did not solve the problem.

Not sure from which drive I'm supposed to execute the commands and if this matters at all. When entering command prompt mode, I was on drive X: and can change to C: and D:, I executed first on C:, then on D:, with same result:

BOOTREC /FIXMBR -> process completed

BOOTREC /FIXBOOT -> access denied

BOOTREC /scanos -> 0 Windows installations found

BOOTREC /rebuildbcd -> 0 Windows installations found

As indicated in my original post, drive letters C: (was originally the SSD with Windows and program installations) and D: (was originally the HDD holding data) have somehow switched. When I go to C: in command prompt and execute DIR, it shows me all the
content that was supposed to be on D: and vice versa.

That means, I can find the Windows directory that was supposed on C: under drive letter D: now, which might be a symptom of the issue, or the root cause.

So might it help to switch back drive letters C: and D:, and how can this be done?

Thanks and regards.

 

Switching C: and D: drives

Summary: In my file explorer, two drives appear. My C drive, where my Windows 10 OS is installed, and my D drive. My C drive is 476 (500) GB, my D drive is 1.8 (2) TB. I would like to switch my C and D drives so the 2TB hard drive is my default, where my
OS is installed, etc. My C drive currently has 290 GB used and 186 unused.

Notes: The D drive does not appear under Settings/Storage - only my C drive appears here. Both drives appear in the Task Manager, labelled "Disk 0 (C" and "Disk 1 (D" which leads me to believe these are physically separate disks, not
partitions - but I could be wrong, please clarify this. To be clear, I cannot see any data stored on my D: drive. Though Task Manager/Performance/Disk 1 says "Formatted: 1.8 TB", when you select the D: drive in File Explorer it states the drive is not
formatted and must be formatted before it can be accessed, then asks if I would like to format the disk (I have not done so). I am willing to reset my computer; all of my files are saved to the cloud and I am in the process of creating a USB recovery drive
as I type this.

Questions: Is this possible? Is this worthwhile? If both possible and worthwhile, how do I do it?

Specifications:

1. This is an ASUS Q530U laptop (not to be confused with the Q530UX or Q530UZ). That is the sticker on the outside of the laptop. Inside the Settings/About it says "Q534UXK". I am not entirely sure why this discrepancy exists but I would trust the sticker
first.

2. Intel core processor: i7-7500U CPU @ 2.70 GHz 2.90 GHz with 2 cores and 4 logical processors. (not overclocked manually but I often see it running between 3.0-3.4 GHz) Also noteworthy is that in the Task Manager, the system recognizes it to have a base
speed of 2.90 GHz. I am not sure why the 2.70 GHz is included in the name of the processor but nobody truly understands Intel's naming system, so.

3. 16.0 GB RAM, 15.9 usable, 2133 MHz

4. Two graphics cards on board, the Intel(R) HD Graphics 620 and NVIDIA GeForce GTX950M

5. See summary for drive information

 

C: Drive and D: Drive files switched after upgrade








All of my downloaded programs are located in the D: Drive