How to change Powershell CLR version when running commands remotely?
Try creating a c:\windows\System32\wsmprovhost.exe.config file and a c:\windows\SysWOW64\wsmprovhost.exe.config file in 64bit OS like this:
<?xml version="1.0"?><configuration> <startup useLegacyV2RuntimeActivationPolicy="true"> <supportedRuntime version="v4.0.30319"/> <supportedRuntime version="v2.0.50727"/> </startup></configuration>