Problem：The system patch of KB4471332 for Windows 10 released on 11th-Dec caused concurrent multi-user login failed.
Description：Cannot login multiple users at the same time. When running RDPConf file of RDP Wrappeer, it is showing: NOT SUPPORTED.
Cause：the system patch KB4471332 modified the terminal services file, causing the RDP Wrapper failed.
Uninstall the patch through: start-> settings-> update & security-> view update history-> uninstall patches, click on the patch to uninstall; or run CMD command to uninstall: wusa /uninstall /kb:4471332 /quiet
Suggestion：Disable automatic system patch update; not to install this patch until the new version of RDP wrapper released.
Note: This patch only influences RDP Wrapper, thus it is safe on systems running authorized RDS-CALs instead of RDP Wrapper.