Here's your info: 
Intel(R) Core(TM) i5-7500 CPU @ 3.40GHz   3.41 GHz
16.0 GB (15.7 GB usable)

64-bit operating system, x64-based processor

Kingston 250 GB 2.5" SSD (not sure if this was OEM or not, but)

Alright, so I purchased the Optiplex a couple years ago, the seller (a university reseslling it's retired tech) installed Windows 11 Pro on it, I've been getting low space messages for ages and I'm over it.  Picked up a KingSpec 512GB, Gen 3x4 2280 M.2 NVMe SSD to replace the old drive via cloning.  I was fairly certain that component was compatible, that may have been error one(?).  Cracked 'er open, put in the M.2 fresh outta the box to begin the cloning procedure... with it installed BIOS won't even BIOS, alright...  Boot order looks good, checking off boxes for the process, looks like Windows was installed RAID On, probably a problem, possibly THE problem.  Can't turn it to AHCI or BSOD no boot device...  Picked up an enclosure, maybe the issue is the lack of unitialized drive?  This is where I realized my lack of experience is getting in the way.  I'm not an IT guy, but I'm also not entirely computer illiterate and humble enough to know to ask for help before the computer bursts into flames.  What's my process here y'all?  I know there's cloning software, hadn't gotten there yet but how do I overcome Windows installed w/ RAID on when it comes to the clone and booting Windows from the new drive, etc., etc.?  I plan to keep the old drive right where it's at, use it for extra storage, 'cuz why not.  Youtube and Google are giving me specks of info, (enough that I can tell you what hasn't worked, possibly why) but I need specifics for this machine...

Help?  Please, thank you and much appreciated!