How to Clean Up Computer Registry Errors

By Lucosi Fuller

A computer can rack up registry errors in a hurry with downloads, installations and modifications that make changes to the registry information. These errors are tangible pieces of information that can slow a system down by taking up space on the hard drive. Since registry errors aren't essential to a computer's performance, they can be deleted without causing harm to the system. To keep your computer up to speed, get rid of those registry errors.

Things You'll Need

  • CCleanerTweak Now! RegCleaner Standard Edition

Cleaning Up Computer Registry Errors With CCleaner

Step 1

Open CCleaner, which you can download for free. See "Additional Resources," below.

Step 2

Click on the "Cleaner" tab, which is the default tool for CCleaner, so it will most likely be selected upon opening the program.

Step 3

Check every box that you want to clean in the "Windows" and "Applications" tabs.

Step 4

Click on "Run Cleaner." This will thoroughly clean the unnecessary files on your computer.

Step 5

Click on the "Registry" tab.

Step 6

Click on "Scan for Issues."

Step 7

When the scan is finished, click on "Fix selected issues." This will delete registry errors from your computer. Since CCleaner doesn't specialize in cleaning the registry, it may miss some registry issues. Run the CCleaner registry cleaner two or three times to catch more registry errors, and then move on to Section 2.

Cleaning Up Registry Errors With Tweak Now! RegCleaner Standard Edition

Step 1

Open Tweak Now! RegCleaner Standard Edition, which you can download for free. See "Additional Resources," below.

Step 2

Click on the scan mode that you want to use. "Custom Mode" offers a scan with user preferences, while "Quick Scan Mode" is similar to CCleaner's registry cleaner, which may miss some registry errors. If you choose "Custom Mode," click on "Edit Custom Mode," and select the registry items you want to scan.

Step 3

Choose your "User Mode." Whether you're a "Beginner" or an "Expert" will come into play when the scan is complete and the errors have been detected.

Step 4

Click on "Clean Now."

Step 5

When the scan is finished, delete the registry errors from the list. Some errors are safe to delete and some are not. If you chose "Beginner" when you selected a "User Mode," the safe errors will be deleted for you, but if you chose "Expert," you get to choose which errors to delete. If an error will cause damage to the system, the program won't allow you to delete it, and you'll have to write down the registry value and delete it manually.

Tips & Warnings

  • Back up your system before you make changes to your computer's registry.