If Registry Booster takes very long to finish a scan, then your registry might be highly fragmented. We recommend that you perform a registry defragementation prior to scanning.
To defragment the registry all you need to do is to load Registry Booster, and click on the registry scan tab then click on the "Registry Defrag" tab, click on the 'Defrag Registry' button to initiate the defragging process.
You can alternatively perform the same scan through windows safe mode to eliminate the possibility of other program interfering with this process.
