New
#11
Have had the same annoying warnings in Office 2010 - thought I'd do another search after there being no apparent solution and found this quite recent post by 'Weather Vane' in a thread on SuperUser. Tried it and it seems to work for me on Office 2010 running on Windows 10 Pro 20H2.
stop "Support for Office 2010 Ending Oct 13, 2020" messages when opening office docs - Super User