Windows 10: Can I switch disk1 to being disk0, and disk0 to being disk1?

I have 1x Intel SSD 660p series Model number: INTEL SSDPEKNW512G8, and 2x WD HDD Model number: WDC WD10EZEX-00BBHA0 housed in my desktop PC.The OS Windows 11 22H2, OS build 22621.75 is installed in the Intel SSD 660p series, which is NVMe protocol.The two WD HDD are SATA drives.The system shows the two SATA HDD as Disk0 and Disk1 and the Intel SSD with OS as Disk3, even though the OS resides on it!The Intel SSD with OS is shown as Disk0 only when I disconnect the two SATA HDD from the system and reverts to Disk3 as soon as the two SATA Disks are connected back.The question is - Why can t

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OS is on disk1, System Reserved is on disk0. Cannot allocate the rest of disk0

Windows 10 was installed on a 1 TB SSD (disk1) and used all the space on that drive. The System Reserved space was placed on a 4 TB HDD and 2 TB of space was allocated to a 2nd volume. The problem is that there is another 2 TB of unallocated space on Disk0!
I been reading online and both disks are formatted with MBR. As I understand it there is a limit with a disk formated in MBR and that limit is 2TB. My question is

How do I allocate that unused space on disk0?

The normal right-click menu items are grayed out that would allow me make a simple, spanned, or spliced volume. My system will not boot if I disable disk0 (unplug), the one with the System Reserved space. I have since read that I should have installed Windows
10 with my 2nd drive disabled, but ... water under the bridge now. I have tried to 'Repair Installation' by booting the original Windows 10 DVD but it doesn't do anything. I made a system repair disk and tried the same with the same results. I tried booting
into windows, inserting the windows DVD then unplugging disk0 to try to 'reinstall' windows 10 on disk1 (C but got error message saying that windows could not determine if I could upgrade or not. I guess that would because the System Reserved area contains
the boot configuration etc. Here is a picture of my Disk Manager.

Does anyone have any idea of how I can allocate that unallocated area to a new volume or expand E: to span the unallocated space. The menu item to expand the volume on drive E: is also grayed out ( I assume due to the 2TB limitation on MBR formatted drives.
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Can DISKPART be used to make Disk1 active system partition and take Disk0 offline when both have System Reserved partition?

I have added a second SSD to my Windows 7 x64 system because DISK0 was acting weirdly. (SMART BIOS said it was "bad" but the SSD manufacturer's disk utility said it was "healthy").

I made a system image of DISK0 and restored that system image onto DISK1. Now DISK0 and DISK1 both have System Reserved partitions. Note that there is also a 2TB "standard" HD with several NTFS volumes which is not shown here:





With DISKPART, is it possible to take Disk0 offline, make Disk1 the active system partition, and reassign drive C: to the 465GB NTFS partition now labeled as disk "I:" ? Perhaps not in that order? If so, could you please give the commands in their proper
order?

The partitions on Disk1 are "MBR".

Thanks

 

Win10 on Disk1

I am running Win7 on Disk1 rather than Disk0 (Disk0 is not being used but is usable).

My machine meets all criteria for installing Win10 and I would like to install it over Win7, but I am unable to reserve a copy of Win10 and wonder if it is because of the way my system is arranged.