Spring computer migration

I finally bought a new computer.  Trusty Desktop, a Compaq Presario SR 1750 NX, is ten years old, and is still running Windows XP.  My web browser and my anti virus and my TurboTax vendors all say they don't support XP any more.  It's time.  I found a used Dell Optiplex on the net at Amazon for $206 delivered.  Came with Win 10 Professional, the fast I5 processor, and acres and acres of RAM and disk space. Hardware is ten years faster than poor old Trusty Desktop.  The Dell keyboard has nice key feel.    Win 10 is so much slower than XP that the new machine is little faster than the old one.   Migration was sluggish.  My photos filled THREE DVD disks.  Thunderbird took most of the day to get working on the new machine.  The menu entry to point Thunderbird to your email file is deeply hidden and concealed beneath an obscure label.  And what little documentation Google found on the web is wrong. 

    I looked at my patch file from Win 10 laptop and put in most of them.  Some of them, mostly removing frill programs, were unnecessary on Win 10 Pro.  Most stuff is now working EXCEPT control C, control V. and Delete (strike out forward) doesn't work.  Web searching turned up a number of fixes, none of which worked.  Web fixes, re install keyboard driver and update keyboard drive didn't fix it.  I'm still working on it.