It contains information, settings, options, and other necessary values for programs and hardware installed on Microsoft Windows. That is to say, Windows will refer to the registry when you are trying to open a program or change hardware. But you should know that not all the Windows applications use the registry for configurations.
As a typical example, the configuration files of portable applications are usually held in their executables. The registry has two basic elements: Keys and values. The relationship between keys and values is similar to that of folders and files. The value is contained in its key, and a key may contain values and subkeys. As for the location of a key, we often reference it with a syntax that is similar to the path name in Windows.
To get further information about the registry, you can check this article. Every time you install a new application, new registry entries will come up in the database. And after you uninstall a program, its relevant registry will become old and useless. Although your Windows can always keep the registry up to date, it cannot clean it up automatically.
So, you have to clean up registry by yourself. Theoretically, you can clean up registry manually via the Registry Editor , but it is a time-consuming and risky task. If you delete a critical entry by mistake or make any wrong changes, it is possible to cause unrecoverable damage for your computer.
Therefore, to clean up registry completely, efficiently, and safely, you had better use a registry cleaner. Here, 10 free registry cleaners Windows 10 are listed. It also provides the feature of System Tuneup and Registry Defrag to help you improve the computer performance. Besides, it supports scanning and cleaning registry of all users with an administrator user.
This multi-user cleaning feature is not available in Free edition and you need to pay for it. It is worth mentioning that this program might attempt to install other programs during the setup. For most common users, CCleaner is the best registry cleaner. As an all-in-one tool for PC cleaning, it allows users to clean up registry with a few clicks in seconds. You can also get more advanced features in paid editions if you need. Apart from the Registry Cleaner feature, it also provides other useful utilities to help you keep your computer in good shape.
It does good jobs in protecting your privacy, ensuring safe browsing, and optimizing your computer. CCleaner was hacked at the end of and many users are worried about being infected by malware. Is CCleaner safe? This is a common question among users. Actually, CCleaner has been updated and its security has been greatly improved. Advanced SystemCare, developed by IObit, is a professional and user-friendly Windows registry cleaner.
It has a technological user interface and provides multiple tools. It allows you to make a customized scan for cleaning and optimization of specific items. Besides, it can protect your online privacy, monitor your system resource in real-time, and boost computer performance effectively. Auslogics Registry Cleaner is another professional tool that can help you clear invalid entries from the registry. It aims to limit program crashes and keep the system stable and tidy.
Wise Registry Cleaner Free. Find and fix incorrect or obsolete information in the Windows registry. Auslogics Registry Cleaner Free. Clean up registry to speed up your PC. Amust Registry Cleaner Free to try. Scan and clean the Windows Registry to avoid system failure. Eusing Free Registry Cleaner Free.
Clean, fix, and restore your system registry. Wise Registry Cleaner Portable Free. XP Registry Cleaner Free to try. Scan and clean your Windows Registry. Registry Mechanic Free to try. Scan and clean up your registry to improve your system's performance. Registry Repair Free. Registry Medic Free to try. Available on PC. People also like. Super-Fast Browser Free.
Smart Disk Cleanup Free. Features Clean system caches, application caches, mail caches, office caches, browser caches. Locate and remove large files you did not open for months Deep scan and sort download folder. Published by Total PC Cleaner. Approximate size Age rating For all ages. Category Productivity. This app can Access all your files, peripheral devices, apps, programs and registry Access your Internet connection Microsoft. Permissions info.
Installation Get this app while signed in to your Microsoft account and install on up to ten Windows 10 devices.
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