[WLUG] Lap Top with 28 GB HD

I recently got a Dell notebook/laptop.  It is smaller than a typical lap top (notebook?) and is very light in weight.  The hard drive is only 28 GB ! It currently runs Windows 10 and has only 4 GB of free space on the hard drive.  It seems to just hang, if I try to update the Windows 10. I am thinking of attempting to install Xubuntu to see if it runs.  Tried Puppy Linux (a light weight distro) before and think I'd like to go differently.  I got the machine for free so will not be disappointed if this goes nowhere.  If anyone has any ideas I'm all ears.  (I might try to do this install tonight) Ron