Inspiron 3880

Hdd has much slower boot speed than SSD.

If you want the faster boot speed of ssd as boot drive, copy/paste data from ssd to hdd, then delete  old data in ssd to create more space.  It is like cleaning up by moving all the cluttered stuff you bought over years from your living room to self storage space, so you can have some new viable space at your home.

A fresh install of Win 11 takes 40 GB space only. So after you copy/paste old data to hdd (back up), you can also wipe the ssd and clean install Windows 11.  Use it like you did before until it is almost full next time, then repeat the back up/wipe/clean install  like a phoenix reborn new after each old life cycle.

@redxps630​ Thanks for the reply.  What I was thinking was to use the command prompt to copy the entire ssd to a hdd that has more space.  Not worried about the speed of boot at this point, but just want to make sure that all my ducks are in the correct row and that I will be able to use the hdd as the boot drive

Hi

Copying C:\ to H:\ does not change the registry entries to H:, so it will likely not run.

Command C:\del *.tmp will probably clear some space, C:\del *.tmp /s definitely does.

Next create some partitions on the 2 TB drive to become C:\ and-or H:\ if that is your intention.

Factory Fresh install to your new C:\

So form a plan, and if in doubt please ask.

Re: use the command prompt to copy the entire ssd to a hdd that has more space

use disk management in Windows to inspect your ssd partitions, 

if there is no factory reserve partition after the main partition in your ssd, you could clone the ssd to hdd by create a system image of ssd, restore that image on hdd, then extend the main partition to include unallocated space of hdd.

If there is a reserve partition, I would still experiment by create a old system image back up, then use Windows installation media in custom mode to delete that reserve partition, exit, make sure ssd can still boot fine, and follow the steps above

Just notice that the system came with DellSupportAssist installed.  Will this be easier to use?

I had never used SA other than ePSA (Enhanced Pre-boot System Assessment)  which imo is a nuisance than help