There are times when you may be unable to use “Right-click tools” to initiate a full software inventory scan on an SCCM client.  To schedule this to occur automatically upon the next normally schedule SINV cycle, do the following:

1. Click on Start\Run and type wbemtest
2. Connect to root\ccm\invagt
3. Click on Enum Classes with recursive selected Look for a class named InventoryActionStatus
4. Double click  InventoryActionStatus On the Object Explorer for InventoryActionStatus dialog box
5. Click on Instances Select
6. Delete the instance with value InventoryActionID = “{00000000-0000-0000-0000-000000000002}”