Before knowing the ignore list you should know what is
registry and why it is used for. Actually registry is the storehouse of settings, options and information’s of the related software and hardware drivers installed in the PC. Registry makes subsequent changes in its key-value pairs when any software is installed or un-installed from the system.

You might have heard many times about the problems related to the system’s performance degradation, abnormal functionality of the system, error message while logging in or logging out of the system, system crashes and many more. But have you ever thought, from where these abnormalities and problems are originating and what is the reason behind it? Then let me tell you it is all due to choking or clogging of registry due to unwanted and orphan files that accumulates in the registry due to improper un-installation, invalid entries, deleted H-CLASS Keys etc. These causes many problems at the startup time, while shutting down and also while working.
So, in order to get over this problem registry need to be cleaned and repaired. For this purpose software called Registry Repair is used. This software scans the whole registry with its sophisticated and powerful algorithm and creates the list of infected files and entries. After that it rectifies and repairs it. It is equipped with many ingenious features among them the ignore list mechanism is very impressive with facilitates fast scanning of the registry.

Ignore List contains the entries of the infected objects of the registry of previous scans. It helps in the future scans by ignoring the objects which are already in the list and facilitates fast and accurate scanning. You can manually edit the list and change the objects whenever you feel the need. So, ignore list registry repair is the helps to increase the performance of the system.