diff --git a/Core/src/org/sleuthkit/autopsy/modules/hashdatabase/HashLookupModuleSettings.java b/Core/src/org/sleuthkit/autopsy/modules/hashdatabase/HashLookupModuleSettings.java
index 7383c74f81..05a1a77e8e 100755
--- a/Core/src/org/sleuthkit/autopsy/modules/hashdatabase/HashLookupModuleSettings.java
+++ b/Core/src/org/sleuthkit/autopsy/modules/hashdatabase/HashLookupModuleSettings.java
@@ -24,39 +24,135 @@ import java.util.List;
 import org.sleuthkit.autopsy.ingest.IngestModuleIngestJobSettings;
 
 /**
- * Settings for a hash lookup file ingest module instance.
+ * Ingest job settings for the hash lookup module.
  */
 final class HashLookupModuleSettings implements IngestModuleIngestJobSettings {
 
     private static final long serialVersionUID = 1L;
-    private final HashSet<String> namesOfEnabledKnownHashSets = new HashSet<>();
-    private final HashSet<String> namesOfEnabledKnownBadHashSets = new HashSet<>();
+    private HashSet<String> namesOfEnabledKnownHashSets;
+    private HashSet<String> namesOfDisabledKnownHashSets;    // Added in version 1.1
+    private HashSet<String> namesOfEnabledKnownBadHashSets;
+    private HashSet<String> namesOfDisabledKnownBadHashSets; // Added in version 1.1
     private boolean shouldCalculateHashes = true;
 
-    HashLookupModuleSettings(boolean shouldCalculateHashes, List<String> namesOfEnabledKnownHashSets, List<String> namesOfEnabledKnownBadHashSets) {
-        this.shouldCalculateHashes = shouldCalculateHashes;
-        this.namesOfEnabledKnownHashSets.addAll(namesOfEnabledKnownHashSets);
-        this.namesOfEnabledKnownBadHashSets.addAll(namesOfEnabledKnownBadHashSets);
+    /**
+     * Constructs ingest job settings for the hash lookup module.
+     *
+     * @param shouldCalculateHashes Whether or not hashes should be calculated.
+     * @param namesOfEnabledKnownHashSets A list of enabled known hash sets.
+     * @param namesOfEnabledKnownBadHashSets A list of enabled known bad hash
+     * sets.
+     */
+    HashLookupModuleSettings(boolean shouldCalculateHashes,
+            List<String> namesOfEnabledKnownHashSets,
+            List<String> namesOfEnabledKnownBadHashSets) {
+        this(shouldCalculateHashes, namesOfEnabledKnownHashSets, namesOfEnabledKnownBadHashSets, new ArrayList<>(), new ArrayList<>());
     }
 
+    /**
+     * Constructs ingest job settings for the hash lookup module.
+     *
+     * @param shouldCalculateHashes Whether or not hashes should be calculated.
+     * @param namesOfEnabledKnownHashSets A list of enabled known hash sets.
+     * @param namesOfEnabledKnownBadHashSets A list of enabled known bad hash
+     * sets.
+     * @param namesOfDisabledKnownHashSets A list of disabled known hash sets.
+     * @param namesOfDisabledKnownBadHashSets A list of disabled known bad hash
+     * sets.
+     */
+    HashLookupModuleSettings(boolean shouldCalculateHashes,
+            List<String> namesOfEnabledKnownHashSets,
+            List<String> namesOfEnabledKnownBadHashSets,
+            List<String> namesOfDisabledKnownHashSets,
+            List<String> namesOfDisabledKnownBadHashSets) {
+        this.shouldCalculateHashes = shouldCalculateHashes;
+        this.namesOfEnabledKnownHashSets = new HashSet<>(namesOfEnabledKnownHashSets);
+        this.namesOfEnabledKnownBadHashSets = new HashSet<>(namesOfEnabledKnownBadHashSets);
+        this.namesOfDisabledKnownHashSets = new HashSet<>(namesOfDisabledKnownHashSets);
+        this.namesOfDisabledKnownBadHashSets = new HashSet<>(namesOfDisabledKnownBadHashSets);
+    }
+
+    /**
+     * @inheritDoc
+     */
     @Override
     public long getVersionNumber() {
-        return serialVersionUID;
-    }    
-        
+        return HashLookupModuleSettings.serialVersionUID;
+    }
+
+    /**
+     * Checks the setting that specifies whether or not hashes are to be
+     * calculated.
+     *
+     * @return True if hashes are to be calculated, false otherwise.
+     */
     boolean shouldCalculateHashes() {
-        return shouldCalculateHashes;
+        return this.shouldCalculateHashes;
     }
 
+    /**
+     * Checks whether or not a hash set is enabled. If there is no setting for
+     * the requested hash set, it is deemed to be enabled.
+     *
+     * @param hashSetName The name of the hash set to check.
+     * @return True if the hash set is enabled, false otherwise.
+     */
     boolean isHashSetEnabled(String hashSetName) {
-        return (namesOfEnabledKnownHashSets.contains(hashSetName) || namesOfEnabledKnownBadHashSets.contains(hashSetName));
+        this.upgradeFromOlderVersions();
+        return !(this.namesOfDisabledKnownHashSets.contains(hashSetName) || this.namesOfDisabledKnownBadHashSets.contains(hashSetName));
     }
 
+    /**
+     * Get the names of all explicitly enabled known files hash sets.
+     *
+     * @return The list of names.
+     */
     List<String> getNamesOfEnabledKnownHashSets() {
-        return new ArrayList<>(namesOfEnabledKnownHashSets);
+        this.upgradeFromOlderVersions();
+        return new ArrayList<>(this.namesOfEnabledKnownHashSets);
     }
 
-    List<String> getNamesOfEnabledKnownBadHashSets() {
-        return new ArrayList<>(namesOfEnabledKnownBadHashSets);
+    /**
+     * Get the names of all explicitly disabled known files hash sets.
+     *
+     * @return The list of names.
+     */
+    List<String> getNamesOfDisabledKnownHashSets() {
+        this.upgradeFromOlderVersions();
+        return new ArrayList<>(namesOfDisabledKnownHashSets);
     }
+
+    /**
+     * Get the names of all explicitly enabled known bad files hash sets.
+     *
+     * @return The list of names.
+     */
+    List<String> getNamesOfEnabledKnownBadHashSets() {
+        this.upgradeFromOlderVersions();
+        return new ArrayList<>(this.namesOfEnabledKnownBadHashSets);
+    }
+
+    /**
+     * Get the names of all explicitly disabled known bad files hash sets.
+     *
+     * @return The list of names.
+     */
+    List<String> getNamesOfDisabledKnownBadHashSets() {
+        this.upgradeFromOlderVersions();
+        return new ArrayList<>(this.namesOfDisabledKnownBadHashSets);
+    }
+
+    /**
+     * Initialize fields set to null when an instance of a previous, but still
+     * compatible, version of this class is de-serialized.
+     */
+    private void upgradeFromOlderVersions() {
+        if (null == this.namesOfDisabledKnownHashSets) {
+            this.namesOfDisabledKnownHashSets = new HashSet<>();
+        }
+        if (null == this.namesOfDisabledKnownBadHashSets) {
+            this.namesOfDisabledKnownBadHashSets = new HashSet<>();
+        }
+    }
+
 }
diff --git a/Core/src/org/sleuthkit/autopsy/modules/hashdatabase/HashLookupModuleSettingsPanel.java b/Core/src/org/sleuthkit/autopsy/modules/hashdatabase/HashLookupModuleSettingsPanel.java
index 163af52695..61cdf8006b 100644
--- a/Core/src/org/sleuthkit/autopsy/modules/hashdatabase/HashLookupModuleSettingsPanel.java
+++ b/Core/src/org/sleuthkit/autopsy/modules/hashdatabase/HashLookupModuleSettingsPanel.java
@@ -101,19 +101,25 @@ public final class HashLookupModuleSettingsPanel extends IngestModuleIngestJobSe
 
     @Override
     public IngestModuleIngestJobSettings getSettings() {
+        List<String> enabledKnownHashSetNames = new ArrayList<>();
+        List<String> disabledKnownHashSetNames = new ArrayList<>();
+        List<String> enabledKnownBadHashSetNames = new ArrayList<>();
+        List<String> disabledKnownBadHashSetNames = new ArrayList<>();
+        getHashSetNames(knownHashSetModels, enabledKnownHashSetNames, disabledKnownHashSetNames);
+        getHashSetNames(knownBadHashSetModels, enabledKnownBadHashSetNames, disabledKnownBadHashSetNames);
         return new HashLookupModuleSettings(alwaysCalcHashesCheckbox.isSelected(),
-                getNamesOfEnabledHashSets(knownHashSetModels),
-                getNamesOfEnabledHashSets(knownBadHashSetModels));
+                enabledKnownHashSetNames, enabledKnownBadHashSetNames,
+                disabledKnownHashSetNames, disabledKnownBadHashSetNames);
     }
 
-    private List<String> getNamesOfEnabledHashSets(List<HashSetModel> hashSetModels) {
-        List<String> namesOfEnabledHashSets = new ArrayList<>();
+    private void getHashSetNames(List<HashSetModel> hashSetModels, List<String> enabledHashSetNames, List<String> disabledHashSetNames) {
         for (HashSetModel model : hashSetModels) {
             if (model.isEnabled() && model.isIndexed()) {
-                namesOfEnabledHashSets.add(model.getName());
+                enabledHashSetNames.add(model.getName());
+            } else {
+                disabledHashSetNames.add(model.getName());                
             }
         }
-        return namesOfEnabledHashSets;
     }
 
     void update() {
@@ -289,11 +295,6 @@ public final class HashLookupModuleSettingsPanel extends IngestModuleIngestJobSe
         alwaysCalcHashesCheckbox.setPreferredSize(new java.awt.Dimension(271, 35));
         alwaysCalcHashesCheckbox.setVerticalAlignment(javax.swing.SwingConstants.TOP);
         alwaysCalcHashesCheckbox.setVerticalTextPosition(javax.swing.SwingConstants.TOP);
-        alwaysCalcHashesCheckbox.addActionListener(new java.awt.event.ActionListener() {
-            public void actionPerformed(java.awt.event.ActionEvent evt) {
-                alwaysCalcHashesCheckboxActionPerformed(evt);
-            }
-        });
 
         jScrollPane2.setBorder(javax.swing.BorderFactory.createEtchedBorder());
 
@@ -346,10 +347,6 @@ public final class HashLookupModuleSettingsPanel extends IngestModuleIngestJobSe
         );
     }// </editor-fold>//GEN-END:initComponents
 
-    private void alwaysCalcHashesCheckboxActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_alwaysCalcHashesCheckboxActionPerformed
-        // TODO add your handling code here:
-    }//GEN-LAST:event_alwaysCalcHashesCheckboxActionPerformed
-
     // Variables declaration - do not modify//GEN-BEGIN:variables
     private javax.swing.JCheckBox alwaysCalcHashesCheckbox;
     private javax.swing.JScrollPane jScrollPane1;