Thanks
Ripplinger for your response,

My cell-phone is only for phone calls and SMS. No internet.
My first eReader USB connection to PC (thru Kobo Desktop) resulted in a safely remove lockup ... it also wiped out my extended clipboard app.

So Kobo Desktop is now gone.
How to store eBooks off the eReader has been a challenge, so far, because I didn't know until 12 hours ago how to download the .acsm files and with the help from others on this forum, now I know. Now also know what .ascm files are.
Adobe Digital Edition download is ready for installing ... I think I am now on my way.
I have just setup a NAS intranet at home, but android has been a challenge.
Hoping to store eBooks on the NAS, along with movies, music and work docs.
Cloud storage ... my personal cloud outperforms off site cloud in speed and access, my work files (AutoCad) are huge and if my net connection is down, my personal cloud is always there. (5bay (4 discs so far) 12TB, raid5)
I like your idea of a spare SDcard with your ebooks on it
Thank you for your help