How do I scan windows registry using Max Registry Cleaner?

Generally after installing Max Registry Cleaner, it automatically opens the application. If you try to open it later then,

1. Click Start -->Programs--> Max Registry Cleaner -->Max Registry Cleaner or you can double click on the Max Registry Cleaner icon on the desktop.
   
2. The main user interface of the Max Registry Cleaner will open with the Scan window.
   
   
   There are two buttons on the Scan Window
   1) Full Scan
   2) Custom Scan.
   Click on either button to start scanning your system for invalid entries.
   
   Full Scan: Max Registry Cleaner will do exhaustive registry scan for the best optimization results. Under full scan all the Options except Cookie and URL History are scanned.
   
   Custom Scan: Allows you to choose the Options from Scan Options window for scanning. In the Scan Options window check the options you want to scan. You can select the option by checking the check box provided on the left side or directly check the Select All option provided on the Scan Options window as shown below.
   
   
   
3. After you have selected this scan options click on the Scan button provided and Max Registry Cleaner will start scanning for the invalid entries.
4. After the Scan is Completed a message box will appear as shown below.
   
   
5. Click on Delete button to delete all the invalid entries detected on your PC. You can also delete this detected entries by selecting the detected entries and clicking the Delete button on the main interface.