NOTE: Screenshots were taken on XP running Windows Modified Theme, "Windows Classic". (Looks like 98)
Fig.6
When Registry Mechanic has compacted your registry this screen will come up. (Fig.7)
#1. Here it will tell you how much space is wasted.
#2. The percentage you can save by finishing the compaction.
#3. Click the 'Compact Now" button.
Fig.7
This screen will come up next. (Fig.8)
#1. Here make sure that 'Create System Restore Point' is checked!
#2. Click 'Yes'.
At this point your computer will reboot and your done.