Windows 10: Unallocated space to the left of boot partition-

I did a clean install of Windows 11 from USB media creation tool and I've made a mess of C: SSD. I watched videos of how to do this, unfortunately the ones I watched failed to show what to do when one got to the partitions part of the install. Several said to delete all partitions and I got scared and ended up making a mess. I have not one but TWO "unallocated spaces" to the LEFT of my boot partition. I don't know how I did it, but now I need to merge those back into my boot partition I think - I have two drives on my gaming PC my main C: drive, which is an SSD and contains my Windows OS, I

:)

 

Partition space

You're not understanding this. Unallocated space is NOT equal as (partitioned) empty space.

Unallocated space means empty RAW sectors on HDD. Empty space means an already allocated file system (either FAT32 or NTFS or any other) that is not occupied by any data.

So in your case, as DanTheBanjoman already suggested, don't try to shrink "unallocated space", extend the main (C*Smile partition instead. You can't shrink something that doesn't exist (unallocated space), but you can extend the existing partition over unallocated space.
So, just select the C: partition and extend it further. Program should automatically allow you to do that. I'm not using Partition Magic, but i usually done this with either:
MiniTool Partition Wizard Free - manage and resize disk partitions (also for 64bit OS!)

or

EaseUS Partition Master - manage disk partitions (only for 32bit OS!)

 

Unallocated Space to C Drive

Thanks

 

Moving Unallocated Disk Space to End of Disk

Was commenting on the pic in post #21. Not suggesting anything. It just looked like the step you were doing was incomplete.