NET Framework versions, see Microsoft Support Lifecycle. NET Framework for developers.įor information on the support lifecycle of. If you install a later version, you don't have to first uninstall the previous version.įor download information and links, see Install the.NET Framework version, you can't install a previous 4.x version on the same machine. If the OS comes preinstalled with a particular.If there's a later 4.x version installed on the machine already, you can't install a previous 4.x version.NET Framework are preinstalled on some versions of the Windows operating system. NET Framework 4 are in-place updates, so only a single 4.x version can be present on a system.
