Money has been unsupported for two years but it still works fine and it will install and run under Windows 8.1. Most people who frequent this forum are happy with Money and don't like the available alternatives such as Quicken.
If you want to change to another program, you will need to find one that will import you data from your Money file. Usually this is done by a qif export from Money and and an import into the new program. The alternative programs will have information
on how to do this.
Bill Becker