By default, PC Health Advisor will not remove your favorites or bookmarks as part of a scan, however you can enable or disable this option easily.
 

Default Privacy Scan Settings remove items in the following categories:
 

+ Windows Cache and History.

+ Internet and Instant Messenger History

+ MS Office History

+ File Sharing History

+ Email Trash
 

The 'favorites' fall under the 'Internet Browsing History' category.
 

Edit your Privacy Scan Settings:
 

1. Open ParetoLogic PC Health Advisor

2. Click on the Settings button

3. Click the Privacy Settings button

4. Now browse the list and uncheck areas you do not want scanned - Internet Browsing History

5. Please uncheck the 'Favorites' option