How to Check the Registry for Errors


The registry is a hierarchical database where your computer logs important data, settings and options for your operating system and applications. Without the registry, your computer would simply cease to function. When an error occurs in the registry, it can cause your computer to malfunction in a variety of ways. Computer viruses like to hide in the registry, and will usually be identified as errors. There are a few freeware programs you can use to check your registry for errors and fix them.


  • Download and install the latest version of CCleaner (see Resources).

  • Launch CCleaner. Click on the "Registry" icon in the left menu.

  • Click the "Scan for Issues" button. CCleaner will check your registry for errors. Click the "Fix selected issues" button to delete the bad files in your registry.

Free Registry Cleaner

  • Download and install the latest version of Free Registry Cleaner (see Resources).

  • Launch Free Registry Cleaner and click on "Scan Now" from the menu on the left. Free Registry Cleaner will check for errors.

  • Click the "Fix all" button to repair all the errors, or select only the errors you want to fix by clicking on them and then clicking the "Fix selected" button.

Eusing Free Registry Cleaner

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