How to Open Registry Files

The Windows registry is a database in which all settings, options and configurations of the system and the applications installed in it are kept. Getting into it can be very dangerous if you don't know what you're doing, but that doesn't mean you have to completely ignore how to access it.

This is the reason that pushes me to explain to you today how to open registry and explore the keys that compose it as well as make a backup and perform some simple maintenance operations. Take it as a starting point to get closer to the subject, so maybe over time you will become an expert and be able to fix your PC problems by acting directly on the Windows registry.

So tell me, are you ready to find out what are the steps you need to take to be able to open the registry? Yes? Fantastic. Then I would say not to waste any more time, to roll up our sleeves and start immediately to get busy. Please take all the steps I am about to point out to you with the utmost caution and do not take autonomous initiatives, so to speak. In that case, I have already mentioned to you, you could risk compromising the functioning of your computer. Then don't tell me I didn't warn you.

Enter the Register

Whatever version of Windows you have installed on your PC, if you want to know how to open the registry, all you have to do is press the key combination Win + R on your computer keyboard (the Win is the one with the Windows flag), in order to bring up the Esegui ..., to type regedit in the text field next to the item You open: and press the button OK visible on the screen or the key Submit keyboard. If a window appears on the screen asking you if you really intend to open the registry, answer affirmatively by clicking on the button Si.

Alternatively, if you are using one of the latest versions of Windows, click the button Start present on the taskbar, type run in the search field that is shown to you and then click on the first result in the list.

The window that will open at this point looks a lot like theWindows Explorer (o File Explorer) and the navigation of the "classic" folders but all the objects present there are not folders but files and groups of files with the extension .Reg that is, precisely, registry keys. In the window in question you will see on the left the list of folders (also known as root key) in which the registry keys are stored (in each key there are the settings for system and programs) and on the right the list of keys contained in the folders selected.

The registry keys, in a nutshell, are the Windows configuration variables and the values ​​represent everything that is loaded, because, how, the options that are set on the various guided windows and much more. To learn more about the values ​​of the various keys and the organization of the registry, without getting bored, consult the appropriate reference Web page on Wikipedia .


All the various and eventual changes that are made to the registry values ​​are immediate and are saved without a request for confirmation from the user. It is therefore a good idea to make a backup of the entire registry or of a specific key before modifying it, also because there is no option that allows you to go back if not modifying everything again by hand.

To make a full backup of the registry keys you need to right-click on the entry computer present in the upper left part of the registry window, then click on the item Fillet present at the top left, choose the item Export ... from the menu that is shown to you, choose the location on your computer to save everything and click on the button Save.

To make a backup of a single key, select from the right side of the registry window and then click on the entry Fillet always present at the top left, choose the item Export ... from the menu that is shown to you, choose the location on your computer to save everything and click Save.

Cleaning and Optimization

The automatic management of keys is one of the biggest defects of Windows because there is always a lot of junk of old uninstalled programs, invalid references and paths and files no longer present on the computer and you have to act manually or, even better, by resorting to the use of software specifically designed for the purpose in question.

In this regard, I suggest you try Eusing Free Registry Cleaner. It is a free program that, in fact, allows you to correct and clean the Windows system registry in a few clicks. In short, it is undoubtedly the ideal solution to say goodbye to slowdowns and errors caused by the bad removal of applications from the PC.

To download it to your computer, connect to the Eusing Free Registry Cleaner website by clicking on the link I gave you just now, click item Download Site1 and then on that Download Eusing Free Registry Cleaner. Once the download is complete, double-click on it to open the file you just downloaded (EFRCSetup.exe) and, in the window that is shown to you, first click on Next for four consecutive times and then on Finish to finish the installation process and start Eusing Free Registry Cleaner.

Nella finestra che si apre, click on your button Skip to access the main screen of Eusing Free Registry Cleaner and select the item Italian from the menu Language to translate the program into Italian. To start a registry scan, click on the entry Analyze log located at the top left and, when the operation is completed, click on the item Repair registry to delete unnecessary entries from the registry.

As I told you, in addition to Eusing Free Registry Cleaner, there are also other software that allow you to perform an accurate but at the same time safe cleaning of the system registry allowing, consequently, to optimize the use of Windows. So, if the operation of Eusing Free Registry Cleaner has not "inspired" you in a particular way, take a look at my tutorial dedicated to programs to clean the registry and to the one on programs to optimize Windows, you will certainly be able to find one tool able to fully satisfy your needs.


Do you find the procedure for accessing and consulting the built-in Windows editor that I indicated in the previous lines too complicated? Then know that there is a free program that allows you to open the registry and browse its keys in the explorer or file explorer, as if it were a simple document folder. His name is Reg Folder and is compatible with all the latest editions of the Microsoft operating system.

If you want to try it, connected to its website through the link I have provided you a moment ago, scroll down the main page to the bottom and click on the item Installation file che trovi in ​​corrispondenza della sezione Download Files for scaricare the program on your PC. A complete download apri, facendo doppio clic su di esso, il file appena scaricato (regfolder_setup.exe) and, in the window that opens, click on Yes to install Reg Folder on your PC.

From now on, you will be free to browse the Windows registry by clicking on the icon depicting a gialla poster present on the taskbar, by double clicking on the item computer o What PC (the item may vary depending on the version of Windows in use) located in the sidebar on the left and clicking twice on the item Windows Registry contained in the computer resources. Easier than that?