Ant wrote:
Basically, the internal flash 32 GB size is too small for Windows 10. It
only has about 6 GB free. A much bigger SSD was added into it, so there
are two internal SSDs now. What's the best way to migrate everything
over to this new bigger drive?
Thank you for reading, and I hope to get an answer soon. 
Clone with any of about 20 different backup/clone programs.
You want a program with a "Windows" background.
Some tools are "dual OS". They have an OS they really
understand, and they support file systems on a second
OS in a skeletal way. You want a Windows-focused program
for best results (mainly because the details of the
NTFS file system on Windows 10, stink).
Macrium Reflect Free can do the job. Then, you'll need
to change the boot order. The program, while it is cloning,
changes the identifiers the OS uses, such that the eMMC
and the SSD use different identifiers, and the two disks
will be "independent".
Problems can arise occasionally, with say a more modern
setup. A UEFI/GPT Secure Boot perhaps. Legacy setups
are more likely to work. Macrium and its Emergency Boot
CD, has a "boot repair" menu item, for attempting to
"fix" clone operations which have partially failed.
I don't have a handy list of all the ways it can foul
up.
Usually, cloning is pretty safe.
1) Install Macrium. Say, 50MB main program installer plus
the WinPE stuff (up to 800MB downloads) which are used
to make a 300MB Emergency Boot CD. Note that Macrium is
a pig at heart, and this will cost you at least 1GB
of storage on your 32GB eMMC. If this is too much for
your tastes, don't despair. If you have a desktop handy,
suited to "technician" activities, you can install Macrium
on that machine and prepare the Emergency Boot CD there.
You can, in fact, do all the necessary operations on the
NUC, using nothing more than the Emergency Boot CD. You
don't actually have to install Macrium on the "target", but
people feel more comfortable when doing so. Once you've
cloned to the SSD, you will have plenty of room to then
install Macrium properly after the fact.
2) Clone the eMMC to the SSD. Use the Emergency CD (or the
image can also be placed on a USB stick).
3) Change the boot order on the NUC. Try to boot the SSD.
4) If the SSD does not boot, boot the Macrium Emergency Repair CD
again, and use the "boot repair" menu item. There are a
total of four tick boxes. Examine the tick boxes, and make
your best guess as to which ones to tick. I'm not going to
try to make an itemized list out of all the possible
combinations.
This page gives the stub downloader for the free edition.
It's the "Home Use" button. The 5MB stub, will help you select
the 50MB main installer plus something like WinPE10 for the
WinPE emergency boot CD materials. If you install on your
technician desktop, this will save wear and tear on the NUC.
On the technician machine, start the program running
from the Windows menu, then select the option to make
an Emergency Boot CD or USB stick.
https://www.macrium.com/reflectfree
The Emergency Boot CD can do Backup,Restore,Clone. The product
has a learning curve, and the GUI is not as "easy" as the latest
Acronis. But generally the software quality is higher.
Acronis likes to craft complex architectures, but they
sometimes blow it on the tiny details. (Yes, I'm ****ed
about the Acronis product I *bought* which was full of bugs.
Acronis Disk Director. *Never* sell a program which
corrupts user data!)
https://www.raymond.cc/blog/10-comme...ed-comparison/
Paul