Software Detection Rules, or Inventory Rules, are created to detect version, registry and other items when checking to see if Software should be installed. These Detection Rules are not deleted when Software is removed, and so they need to be managed. Currently there is no method to view these Inventory Rules other than when you create or modify a rule, you can see the existing rules.
Here's a sample list of default Inventory Rules:
ITMS 8.x
Inventory Rules can be viewed from Manage > Resources by changing the Filter to include Inventory Rule as shown below:
NOTE: First select Default in the left tree to see the FILTER option on the right.
The Resources view has a Right-Click menu which gives you options to DELETE and EDIT RULE. You can also view the Properties to see when the Rule was created and modified.
NOTE: if a Rule is in use, you will not be prompted when deleting the rule. Make sure that Rules being deleted are not IN USE. As a suggestion, when working with Rules and you no longer need one, rename it to add 'Delete Me' to the name, and then you can find these and delete them using this view.