The Windows Experience Index (WEI) Rating / Windows System Assessment Tool (WinSAT) on my system aborts with an error message. All tests are run, the XML files in
%systemroot%\Performance\WinSAT\DataStore are generated, but nothing is displayed in the control panel.
When run from the command line the error message is
Error in saving results to the datastore winsat\main.cpp(4735)
Update: For some, the solution seems to be deactivating Kaspersky. However, I don't have (and never had) Kaspersky installed. My Win 7 Ultimate is freshly installed and activated and has the same problem.