In the Windows system, Registry is a hierarchical database that stores settings related to the Windows system. It is a sensitive enough database. Inappropriately changing a value can cause your system to run not the way it supposed to be.

In addition to storing settings of the default apps of Windows, Registry also stores the settings of the third party apps you have installed. Some apps might add their settings to the Registry. Some apps might don’t clear up the settings stored on Registry even if you have uninstalled them. Although not too significant, it can contribute in slowing down the performance of your computer.

You can use a Registry cleaner tools to clean up the unnecessary entries on Windows Registry. Before doing do, you better backup up your Registry first just in case something bad will happen during the clean up process. Once again, Registry is a sensitive enough database. Inappropriately changing a value can lead to a problem on your Windows system.

Following are 7 of the Registry cleaner tools for Windows 10 that you can use for free.

1. CCleaner

CCleaner is one of the most popular system-cleaning tools for Windows. You can use this tool for free. The free version of CCleaner allows you to clean up the unnecessary entries on the Windows Registry. In addition to cleaning up Registry, this tool can also be used to clean up browsing data, temporary files, Recycle Bin, log files and other unnecessary files on your Windows system.

2. Advanced SystemCare

You can also use Advanced SystemCare every time you think you need to clean the Registry. Advanced SystemCare uses the freemium business model with the free version allows you to clean up the Registry. In addition to Windows 10, Advanced SystemCare can also run on other Windows versions, including the very old version Windows XP. Just be thorough when installing this tool because the binary file of this tool is bundled with Dashlane password manager. Don’t tick the Dashlane option if you don’t want to install it on your system.

3. Glary Utilities

Glary Utilities is also a system-cleaning tool that has a feature to clean up the Windows Registry and this tool can be used for free. This tool can run seamlessly on all Windows versions, including Windows 10. It will scan all entries on the Registry to find if there are some entries it can fix. Glary Utilities itself is a comprehensive tool. While you can use it to clean up unnecessary entries on the Windows Registry, you can also use it to manage startup, analyze disk usage and so on.

4. Clean Master for PC

All basic features offered by Clean Master for PC, including the one for cleaning up the Registry, can be used for free. However, this tool doesn’t offer an option to only scan Registry. Instead, it will scan the whole system with the major purpose to help you reclaim some Megabytes or Gigabytes of the storage space. Even so, you can clean up the scan results individually by clicking one of the available items. This tool itself can be installed on all Windows versions. From Windows XP to Windows 10.

5. CleanMyPC

CleanMyPC is a system-cleaning tool that has a very clean interface. It has lots of features to help you maximizing the performance of your Windows system by getting rid of unnecessary files, including unnecessary Registry entries. It has a feature to scan only Registry for quicker scanning. The basic features of this tool can also be used for free, including the feature to clean up Registry.

6. SlimCleaner

SlimCleaner also has an option to scan and clean up the Windows Registry, but you need to set the scan preferences to tell this tool to scan the Registry. SlimCleaner will perform the scan disk right away upon launching. This tool can also be used for free. The Schedule feature offered SlimCleanear is also available on the free version.

7. AVG TuneUp

AVG might is better known as an antivirus program, yet it also has a tune up tool called AVG TuneUp. AVG TuneUp can be used for free. This tool has an option to scan the Windows Registry to fix and clean the broken entries. Premium version is available if you need to unlock more features.

Final thoughts

Some third party apps you have installed on your Windows computer might created entries on the Registry to store their settings. Some entries might remain on the Registry even if you have uninstalled the apps associated with them. Some system tune up tools have a feature to fix and and delete unnecessary entries on the Registry.

One crucial thing, Registry is a vital component on the Windows system. Inappropriately changing entries might can cause your Windows system to not run the way it should be. We strongly suggest you backup the Registry first before starting to clean it up.