Thanks for the update. The funny thing is - the installer runs automatically when the client visits the gateway webpage. So there is no way for the user to set the compatibility mode. I'm curious: How exacty does the installer check for OS-version? Registry keys? some dll?   Anyway - we are quite sure that the problem only happens with the batch of lenovo-notebook's Will do a system restore with the image supplied by lenovo and a manual win7-install after christmas. An update post will follow probably next week.       ... View more

Can you check %appdata%\Roaming\Pulse Secure (or Juniper Networks)\Setup Client\ for a that includes the name CompMgr? This file is used to check for compatibility; if something triggers this to run in compatibility mode, it will fail to install. Can you also check in C:\Windows\Downloaded Program Files\ for any Pulse or Juniper components and make sure that compatibility mode is not enabled on those? ... View more