Keyman Desktop 9.0 fully supports 32-bit and 64-bit versions of the following Windows operating systems:
Windows Server 2008 and 2008 R2
Windows Server 2012 and 2012 R2
NoteKeyman Desktop works slightly differently in different versions of Windows. Older versions of Windows have more language limitations and need extra configuration.
Keyman Desktop 9.0 has minimal resource requirements. Any computer that can run Windows 7 should be able to run Keyman Desktop without trouble.