I do occasional PC repairs and maintenance for clients.  I was recently called to a lady who has been recently widowed and has 'inherited' her husband's computer, running windows 10.  She asked me if - as much for convenience as anything else - I could change the names that all his various software (Office, Outlook etc) was registered to.  Not the licence type or anything like that - just the 'username'.  I find he has taken an old recommendation of mine to heart and has The Bat! ver 11 installed.  And sure enough, under 'Help' > 'About' it shows his name as 'Registered to:'.  That's the entry I've been asked to change.  I've told this lady I'm not sure this is possible, but thought I'd ask here in case some one knows for sure.  Any help appreciated.