Have you recently purchased a Family Tree Maker CD.
Is it compatible with Windows 11 ?
Did you purchase on line, if so where from ?
I am Sheffield based, anywhere reasonably local that sells the CD ?
I don't have the CD version, its just a file downloaded from the Internet (slightly cheaper than the CD versions). That way you can purchase any updates straight away.
I'm also in Sheffield but have never seen it for sale anywhere here - the nearest reseller seems to be My History Ltd, Denaby Main,Doncaster . But you can order from them online.
I have used "Legacy" from Family Search for 24 years. I used the freeware tree and later updated to the deluxe version for about $22.(More printouts etc).
I am on Windows 10 and its certainly compatible with that.