It's a well known phenomenon in Registry Compactor.
There are many posts on this forum about it and I guess every user of the PowerTools has the same problem.
It's a fact the tool can't open the Security hive (never).
The issue has been often reported, but so far the developer hasn't / couldn't (?) fix(ed) it.
Note: don't use ImageShack, there's a possibility in the forum software to attach images. Click on "Upload attachment" at the bottom of the new / edit post window.