Why should I clean the Windows Registry?

The Windows registry is a database used to store important settings and configuration information for Windows operating systems without which Windows cannot operate. The registry contains information and settings for all the hardware, software, users, and preferences of your computer and your operating system.

Whenever you makes any changes to the Control Panel settings, file associations, System Policies, or installed software, the changes are reflected and stored in the registry. Running an application on your computer can make several changes to your registry.

Over time, invalid entries or orphaned references can accumulate in the Windows registry. These problems may accumulate for several reasons listed below:

  • Uninstalling or incorrectly removing software, resulting in invalid file or folder references as well as orphaned startup programs.

  • Having missing or corrupt hardware or software drivers installed.

  • Deleting the files that are referenced by shortcuts.

Accumulation of invalid entries can potentially decrease performance of your system and cause it to generate error messages, prevent programs from functioning properly, or result in your system becoming unstable and crashing.

Registry cleaning helps you detect and resolve these issues.

How do I clean the Windows Registry?

How do I configure Ignore Lists?

How do I repair Windows Registry problems?

What registry sections are scanned?

How do I compact my Registry?

What is Defragmentation?

My system takes too long to start up. What should I do?

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DOCID: v83507412_norton_utilities_help_en_us
Operating System: Windows
Last modified: 09/28/2015