I'm trying to delete 7 old no more used lists from a
Web. In the list settings there is no delete option. Trying to delete it using SharePoint Designer, PowerShell and SharePoint Manager I get the error "This List can't be deleted".
How can I delete them?
Some info on the farm:
The OnPremise farm has been built by my predecessor, I migrated it to 2013 and last year to 2016. I don't know if it started from 2007 or 2010, but I see that the main default.aspx is dated 27.05.2010.
Of course, I'm not talking about syste libraries. These have been created by my predecessor.