How do I easily get these SSD partitions I want with least SSD wear

For new laptop with only Windows 10 Pro 64 v1803 & some utilities installed:

I HAVE: a 1 TB SSD (NVMe M.2). Win 10 "Disk Management" says SSD has:
952 GB total Capacity [gigantic] in my C: Windows partition
52 GB used Capacity [small] in my C: Windows partition

I WANT: the 1 TB SSD (NVMe M.2) existing C: Windows partition to change to:
266 GB total Capacity [optimum] for my C: Windows partition (52 GB used)
686 GB total Capacity [optimum] for a D: Data partition

PROBLEM IS: Win 10 "Disk Management" only allows a Minimum of
505 GB total Capacity [overlarge] for my C: Windows partition (52 GB used)
according to size info it gives me when I right-click & select Shrink.

Above is my situation now. Can you answer 3) brief questions below?:

1) Am I correct the answer to getting the partitions I want is to use better defragmenting and partitioning tool(s) than Disk Management? OR, is there some other approach I must take (and if so, what?)?

IF such better tool(s) are the answer, NOTE 1a) through 1c) below:

1a) I'd like the easiest documented way to get the above partitions I want, since I'm UNknowledgeable on defragmenting and partitioning.

1b) I'm hoping for easy defrag/partitioning tool(s) for a SSD with priority on defragmentatiion to a set size so reduce wear on the SSD (i.e. defragment SSD only enough so existing 52 GB fits in set size of 266 GB,
then easily shrink the C: partition size to 266 GB and set me up a D: partition with size of 686 GB).

1c) I'd prefer free tool(s), but am willing to buy tool(s) for much better ease of use (and defragmentation only to a set size as per above paragraph).

2) Should the tool(s) generate a CD/FlashDrive I boot from, so I can defrag the C: partition (because cannot defrag live Windows OS C:?)?

3) ***What specific defragmenting and partitioning tool(s) do you suggest I use to produce the partitions in the I WANT: paragraph above?

Thanks for any advice and answers you can provide.

I wouldn't defragment it at all.

Here's what should be the best tool. The free version is fine.

I wouldn't be at all excited about wear on an SSD.

Free Download MiniTool Partition Wizard | Best Partition Manager for Windows PC and Server

It should allow you to shrink C to a smaller size.

Minitool Partition Wizard is what you need. It's also useful for perusing the contents of hidden partitions should you need to do so. Don't worry too much about SSD wear. I have a 2012 Intel SSD used daily which still shows 100% remaining life in the Intel SSD utility.

ignatzatsonic and Steve C:

Thanks for your prompt replies recommending MiniTool Partition Wizard Free!

I'll try it out in a week or so (given my schedule) and let you know how things go.

MiniTool Partition Wizard took my very large SSD C: Windows partition & gave me the small C:Windows & the large D: Data partitions I want.

I elected to buy MiniTool Partition Wizard Pro (with 1 year of updates) because it generates a MiniTool flash drive (or bootable CD) which you use to boot up MiniTool. This boot allows MiniTool to do its thing on the C: Windows partition while C: Windows is NOT booted live & running Windows as you try to partition it, which I like.

This approach is recommended for SSDs by MiniTool, which also shows how to make MiniTool bootable flash drive (~ to CD I made) here:
Want to Resize Partition on SSD? Try the Simplest Way!

Plus a response from MiniTool support also suggested this approach. (Versus the Split menu selection I would've used if I hadn't asked.) Support email is good (it really is 24x7)--I had an average 4-hour response at all hours to several inquiries about MiniTool. I'm happy to pay for good support like that. I also found a web offer that gave me 40% off Pro's $39 including its 1 yr priority support.

Using the Help in MiniTool, I got examples to proceed with the 2)-step process MiniTool Support gave me for solving my problem:

1) Use the Move/Resize Partition menu selection to shrink C: Windows partition to size I want and leave unallocated space for step 2):

2) Use the Create Partition menu selection to turn the above unallocated space into a D: Data partition of the size I want.

Thanks you guys for your help. I've marked this problem Solved.

You could have got the previous bootable version Pwfree91.iso for free and burned a CD or made a bootable USB drive e.g. https://www.partitionwizard.com/faqv...ree91-iso.html