How to Clean Registry in Windows 10: A General Guide

Cleaning registry on your Windows 10 computer is an essential task you should do regularly. It helps to free up space, minimize errors, and improve your system’s performance. However, many people get confused about how to clean registry on Windows 10 since it requires technical knowledge. In this article, we will guide you through the necessary steps to clean the registry on Windows 10, and explain why it’s important. You don’t have to be a tech expert to follow these steps, so let’s get started!

Step-by-Step Guide to Clean Registry Windows 10

Step 1: Backup your Registry

Before cleaning your registry, make sure to back it up in case anything goes wrong. To do this, open the registry editor by typing “regedit” into the Windows search bar and pressing enter. Right-click on the “Computer” icon and select “Export.” Choose a safe location and save the backup file.

Step 2: Use Windows Built-in Registry Cleaner

Windows 10 comes with a built-in registry cleaner called “Disk Cleanup.” To access it, type “Disk Cleanup” into the search bar, and select the “Disk Cleanup” app. Click on “Clean up system files” and select the “Registry Cleaner” option. It will help you clean unnecessary files in your registry, which can improve overall system performance.

Step 3: Use a Third-party Registry Cleaner

If you want to use a third-party registry cleaner tool, there are many available on the internet. However, make sure to download from a reliable source, and do proper research before downloading any tools. We recommend using CCleaner, a trusted registry cleaner software by millions of users worldwide.

Step 4: Run Full System Scan

After installing a registry cleaner tool, do a full system scan to identify issues and errors in your registry. Follow the instructions given by the software to fix them.

Step 5: Delete Unused Registry Entries

Many registry entries remain unused, which can cause your system to slow down. You can delete them manually using the registry editor. To do this, open the registry editor and navigate to the entry you want to delete. Right-click on it and click “Delete.”

Step 6: Remove Unwanted Startup Programs

When you start your computer, some programs automatically run in the background, which can slow your system down. Use the task manager to remove unwanted startup programs. To do this, right-click on the taskbar and select “Task Manager.” Go to the “Startup” tab, and disable the programs you don’t want to start automatically.

Step 7: Uninstall Unnecessary Software

Uninstalling unnecessary software can help to clean up your registry and free up space. To do this, open the “Control Panel,” and click on “Programs.” Select the software you want to uninstall and click “Uninstall.”

Step 8: Check and Repair Disk Errors

Using a disk checkup tool such as chkdsk can help to identify and fix any disk errors on your system. Open the command prompt, type “chkdsk /f” and press enter. Follow the instructions given by the tool to complete the scan and repair process.

Step 9: Use System File Checker

System File Checker (SFC) is a tool that checks for any corrupt or missing system files and repairs them. It can help to clean up your registry by fixing any issues related to it. To use SFC, open the command prompt, type “sfc /scannow” and press enter.

Step 10: Disable Unused Windows Features

Disabling unused features can help to improve system performance and reduce registry errors. To do this, open the “Control Panel,” click on “Programs and Features,” and select “Turn Windows Features On or Off.” Uncheck the features you do not use and click “OK.”

Step 11: Keep Your System Up-to-Date

Regularly updating your Windows 10 can help to improve system stability and performance. Go to the “Settings” app, click on “Update & Security,” and select “Check for Updates.”

Step 12: Restart Your Computer

After completing all the above steps, restart your computer to ensure all changes take effect and your system is running smoothly.

Tips and Tricks for Cleaning Registry Windows 10

Tip 1: Do Not Delete Registry Keys Manually

Manually deleting registry keys can cause permanent damage to your system. Always use a trusted registry cleaner tool or seek professional help.

Tip 2: Do Not Download Freeware Registry Cleaners

Free registry cleaners may contain malware and cause damage to your system. Always download software from trusted sources.

Tip 3: Perform Scheduled Maintenance

Set a schedule to clean your registry and perform regular maintenance to keep your system running optimally.

Tip 4: Use a Disk Defragmenter Tool

Disk defragmenter tools can help to organize your files on your hard drive and improve overall system performance.

Tip 5: Keep Your System Clean and Organized

Avoid clutter on your desktop, delete unnecessary files, and keep your system organized. This can improve system performance and minimize registry errors.

Tip 6: Close Unused Program and Tabs

Closing unused programs and tabs can help to free up system resources and improve overall system performance.

Tip 7: Use an Antivirus Software

Using an antivirus software can help to prevent malware infections and reduce the risk of registry errors.

Tip 8: Avoid Modifying Registry Settings

Modifying registry settings can cause irreversible damage to your system. Always seek professional help or use a trusted registry cleaner tool.

Tip 9: Keep Your System Updated

Regular updates can help to improve system performance and minimize registry errors. Always keep your system up-to-date.

Tip 10: Use a VPN Connection

Using a VPN connection can help to protect your system from malware infections and reduce the risk of registry errors caused by malicious websites. Cleaning your registry on a Windows 10 computer is essential to maintain system performance and stability. By following the above steps and tips, you can easily clean your registry and keep your system running smoothly. Remember to always use trusted tools and seek professional help if needed. Keep your system organized, updated, and protected to minimize registry errors and optimize overall system performance.

Advantages and Disadvantages of Cleaning Registry in Windows 10

If you’re experiencing slower computer performance, program errors, or system crashes, cleaning your Windows 10 registry might help. However, before you decide to clean your registry, knowing both the advantages and disadvantages can save you from potential troubles.

Advantages (Kelebihan)

  1. Improves computer performance: Cleaning registry can remove unnecessary entries that can slow down your computer. By doing this, your computer can run smoother and faster.

  2. Increased stability: Removing invalid entries and fixing errors in the registry can prevent system crashes, blue screens, and issues with software installation or updates.

  3. More efficient registry: Cleaning the registry can create more space, reduce registry size, and make it faster for your system to process.

  4. Deletes malware traces: Some malwares might leave traces in the registry that can cause issues. Cleaning the registry can delete these traces, which protects your computer from malware.

  5. Customizable cleaning: You can choose which entries to clean, keeping settings or installations that you need.

  6. Free tools: There are many reliable and free tools, such as CCleaner, that can safely clean the registry.

  7. Reduces the need for system repair: By keeping your registry clean, you can reduce the chance of damaging entries that may require system repair later on.

  8. Can help fix certain issues: Some issues with software installation, updates, or program errors can be traced back to registry problems. Cleaning them can help resolve these issues.

  9. Older systems can benefit: Old systems that have accumulated registry errors can benefit from a registry cleaning to improve performance.

  10. Easy to perform: Cleaning the registry is easy, and there are many tutorials available. It can be done in just a few clicks.

Disadvantages (Kekurangan)

  1. Potential data loss: Removing the wrong registry entries can cause program errors, system crashes, and even data loss.

  2. Not always necessary: Not every slow computer or program error is caused by registry problems. Cleaning the registry might not always be the solution, and other troubleshooting steps may be necessary.

  3. Improper cleaning can cause issues: Using an unreliable or wrong registry cleaner can cause issues, and might remove critical entries that your computer needs to run correctly.

  4. Time-consuming: Cleaning the registry can take a long time, especially if you have never done a registry cleaning before. In some cases, it may take hours to complete.

  5. No guaranteed performance boost: Cleaning your registry does not always result in increased computer performance. Factors such as hardware limitations or software compatibility issues can still limit performance.

  6. No built-in tool: Windows 10 does not have a built-in registry cleaning tool. You will need to download and install a third-party program to safely and efficiently clean the registry.

  7. Potential to void warranties: If you’re not careful, you might accidentally void your warranties by making unauthorized changes to your system.

  8. Risk of malware: Malware might disguise itself or be bundled with registry cleaning software, posing a potential risk to your system. Always research and use trusted sources for reliable registry cleaning software.

  9. Frequent cleaning may be unnecessary: Frequent registry cleaning is not always necessary, and can do more harm than good. Cleaning the registry too often can cause system instability and issues.

  10. Not always the solution: Registry problems aren’t always the root cause of computer issues. Cleaning the registry may not always solve the problem, and other troubleshooting steps may be necessary.


1. What is the registry in Windows 10?

The registry is a database in Windows 10 that stores settings and configurations for the operating system and installed programs.

2. Why should I clean the registry in Windows 10?

Over time, the registry can become cluttered with outdated or unused entries, which can slow down your computer and cause errors.

3. How do I access the registry in Windows 10?

You can access the registry by opening the Run dialog box (Win + R) and entering “regedit”.

4. Is it safe to clean the registry in Windows 10?

Yes, it is generally safe to clean the registry in Windows 10 as long as you follow the necessary precautions and backup your registry before making any changes.

5. What is a registry cleaner?

A registry cleaner is a software tool that scans your registry for errors and removes outdated or unused entries.

6. Are free registry cleaners effective?

Yes, there are some free registry cleaners that are effective, but you need to be careful when selecting one as some may contain malware or be ineffective.

7. What are some reputable registry cleaning software?

Some reputable registry cleaning software includes CCleaner, Advanced SystemCare, and Wise Registry Cleaner.

8. How often should I clean the registry in Windows 10?

It is not necessary to clean the registry in Windows 10 regularly. You only need to do it when you notice performance issues or errors on your computer.

9. How long does it take to clean the registry in Windows 10?

The time it takes to clean the registry in Windows 10 depends on the size of the registry and the speed of your computer. It can take anywhere from a few minutes to over an hour.

10. Can cleaning the registry in Windows 10 fix all my computer problems?

No, cleaning the registry in Windows 10 can improve performance and fix some errors, but it cannot fix all computer problems.

11. What other ways can I improve the performance of my computer?

You can improve the performance of your computer by deleting temporary files, uninstalling unused programs, updating drivers, upgrading hardware, and running antivirus software.

12. Can I undo changes made to the registry in Windows 10?

Yes, you can undo changes made to the registry in Windows 10 by restoring a backup of the registry or using the System Restore feature.

13. How do I create a backup of the registry in Windows 10?

You can create a backup of the registry in Windows 10 by opening the Registry Editor, selecting “Computer”, and clicking “Export”. Choose a location to save the backup and give it a name.


In conclusion, learning how to clean registry in Windows 10 is crucial for maintaining the performance of your computer. An overloaded or damaged registry can cause a variety of problems, from slow startup times to crashes and freezes. By regularly cleaning your registry, you can eliminate unnecessary entries and keep your system running smoothly.

There are several easy-to-use tools that make the process of cleaning your registry a breeze, even if you’re not a computer expert. Whether you choose to use a dedicated registry cleaner or the built-in Windows tool, make sure to backup your registry before making any changes. By following these simple steps, you can improve the performance and lifespan of your computer and enjoy a faster and more stable experience.


Thank you for taking the time to read this article on how to clean registry in Windows 10. We hope you found this information helpful in optimizing the performance of your computer. If you have any questions or comments, please feel free to reach out to us. Happy cleaning!

Until next time!