How is the Health calculated?

CCleaner Network analyses all your hosts and gives them a score indicating how Clean or Defragged they are.  100% indicates perfect health, whereas 0% shows that the host really needs attention.

There are Health scores for each Network as well as for each Group.

 

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The Health scores are an average of all the Clean and Defrag scores for the hosts in the current Network or Group. For example, if you had a CCleaner score of 60% and a Defraggler score of 50%, your Health would be 55%. This Health is then averaged over all the other hosts in the group to give you the Group Health.