The Recommendations gadget provides pro-active solutions to issues detected when you send your Windchill system data to the Performance Advisor.
By clicking on the top-level gadget additional detailed information related to the recommendations is made available including solution instructions and links to supporting TS articles:
Initial recommendations are focused on performance tuning, specifically optimizing your cache settings with more to come later. Consider opting-in to Performance Advisor for PTC Windchill (available for 10.2 M020, M030 and Windchill 11.0) and take advantage of its pro-active support capabilities to have your system running at peak performance.