Norton crashes when i attempt to open the vault

this computer is one i use with my Amateur radio equipment because of the size...  

Dell Latitude 2100 windows 7

this began about the time the windows 10 upgrade icon appeared on the taskbar. 

it doesn't matter if i'm using IE, FF, or Chrome... the vault is closed and when i attempt to open it, norton crashes.  i've checked for upgrades in all programs and everything is up to date.  (norton too)  FF keeps telling me that the taskbar isn't compatible, even.

i've scanned for virus and malware... nothing shows up.

soooo, i'm puzzled.  the only thing i can imagine is that there's been something in win7 changed in an upgrade...

i have 2 laptops and a desktop with XP and Vista, they're doing fine.

i'm about through with windows, i'm tired of being forced to upgrade.  i think my next device will be an Android product of some sort.  anyone else fed up?