The Windows registry is a central hierarchical database in Windows used to store information necessary to configure the system for one or more users, applications, and hardware devices. The registry contains information that is constantly referenced during operation, such as profiles for each user, the applications installed on the computer; and the types of documents each can create property sheet settings for folders and application icons, what hardware exists on the system; and which ports are being used. Windows registry is a vital part of Windows, if it is damaged your whole system may be corrupted and cannot be used.

The registry is important because it stores vital information about your Windows system and its configuration, as well as information about all application programs installed on your computer. Whenever you add and remove software, change your settings, add new devices, or upgrade your system, your registry is changed.

For example, when you install a new printer, information about this device is written to the corresponding part of the registry. If this data is then somehow corrupted, you will not be able to work with the printer.

The truth is that usual daily work of your Windows computer results in numerous registry keys and files being changed in the Windows registry. When data changes i.e. you delete a file, the registry doesn't remove the invalid data, thus in this case a reference to a non-existent file remains in the registry. Even if you properly uninstall a program, it still might leave a few keys and values in the registry. As the registry gets filled with invalid data, Windows and programs consume more system resources to search the database for any data. Therefore your computer gets slower and slower. Finally, it stops running.

• Viruses: Many viruses attack through the registry by creating or modifying keys. Unless you have a thorough knowledge of your system and registry keys or specific direction from a technical expert on how to search for these infected keys, it is very dangerous to try to edit the registry on your own. Any damage done to the registry at this point would require either restoring of the registry from backup or reinstalling of Windows. Either way, there will be some information lost.
• Tracking programs: Programs that install themselves through internet pages and track your internet usage to transmit data back to their hosts usually have registry keys associated with them. Some have multiple keys, under multiple program names or in multiple folders, within the registry. In order to fully eradicate the program from your computer, you must delete all of its associated registry keys. This can be very tricky.
• Uninstalled programs: If you have recently uninstalled programs without going through the official uninstall program (or if the program did not have an uninstall feature and you deleted it) there may be some keys remaining in the registry. Without removing these keys you may encounter errors as Windows will try to operate based upon the keys. In order to fully uninstall the program, you will need to remove the associated keys.

Last but not least, passing invalid data to Windows programs can cause severe system complications resulting in system crash, hang and malfunction.

Every computer that runs on a Windows OS has a registry, and every Windows registry ends up with errors eventually. Downloading from the Internet, installing and uninstalling programs, deleting unwanted files - all of these things can cause errors in your Windows registry, leading to serious performance issues for your PC. The decrease in system performance, the increase in system crashes and freezing... These things can all be caused by registry errors.

No, if you are operating your computer on a Windows OS, you must have a Windows registry. Without the registry, Windows cannot operate properly and it is not possible to remove the registry from your system.

Your computer's performance definitely won't improve and will probably get much worse over time. In the worst-case scenario, your computer experiences a fatal error and you need to take it in to get the entire hard drive reformatted or you need to buy a brand new computer. It is much easier, less frustrating and more cost-effective to repair the errors in your registry before it gets too bad.

It doesn't make sense to sort through the registry yourself. First of all, you probably don't know what to look for, what to remove and what to leave alone. Even if you did have enough experience and knowledge to repair your registry manually, it would take you days to do something that Registry Cleaner can do in mere minutes.

Not unless you want to throw away money. You need to repair your registry on a regular basis, and that can get expensive if you keep hiring a professional every time you need your registry repaired. With Registry Cleaner, you don't have to deal with that continued expense.

Registry Cleaner is a registry cleaner utility tool that will remove errors and bugs from your PC safely and easily. But what does that mean to you? Put simply, Registry Cleaner will scan your registry, finding all of the errors causing your PC problems, and will then repair those errors instantaneously.

First of all, Registry Cleaner is more cost effective. In addition to that, Registry Cleaner can probably do a better job than your computer tech, depending on what your computer tech uses to repair your registry. For all you know, your computer tech is charging you more than $100 and then turning around and using Registry Cleaner to do the work.

Yes, Registry Cleaner is VERY easy to use. It is very user-friendly and the intuitive prompts lead you through the entire registry repair process.

The exact amount of time it takes for Registry Cleaner to fix your computer will depend on how many errors are in your registry. In most cases, Registry Cleaner will take just a few short minutes to repair and resolve your registry problems.

As you continue to use your computer, you will continue to get registry errors. Because of this, you will want to use Registry Cleaner on a continual basis.

Yes. Normally it is not possible to install new applications unless you are an administrator.

Ideally yes. Although you can still run this as a normal or restricted user, however, some files may not be deleted.

Fully tried and tested with Windows Win95/ Win98/ WinMe/ WinNT/ Windows 2000/ WinXP/ Vista x32,
Vista x64.

There are no Mac or Linux versions.

Launch Registry Cleaner, click the "Restore Registry" button. Select the file you saved your registry information to and press "Ok" button. When complete this, all registry information will be restored.

Registry Cleaner runs on Microsoft Windows 2000, XP, XP x64, Vista 32-bit, or Vista 64-bit installed and configured on your system.

The main requirement is that on your computer should be installed Microsoft Framework 2.0.
» Download Microsoft Framework 2.0

• User interface must be light, intuitive and provide friendly operation for all users, regardless of their experience level.
• Quality registry solution should be developed in accordance with industry standards, and possess certain maturity grade.

Whatever registry maintenance software you are going to use, consider the following recommendations:

• Regularly scan and clean your registry to avoid the obsolete and inaccurate information remaining there for a long time, producing a negative impact on your system.
• Registry backup should be performed daily, and before software and hardware changes (installation, un-installation, or upgrade). Always back up your registry before cleanup.
• Extremely strong care should be exercised during cleanup. Always pay attention to the severity of each error found. Do not make changes if you are not sure about them.

The software key will be sent to you on your email after you fill all required data in the "Purchase form". Together with license key you will get further instructions on how to register Registry Cleaner.

Open "Purchase Registry Cleaner" page on website; fill required information in the form on page and press "Purchase" button. Registration key and further instructions on Registry Cleaner registering will be sent on your email.

To register Registry Cleaner run the program; open Help->Registration window of the main menu and past your registration key (from the letter you got after purchasing the software) into the Registration Window form and press “Register” button.

If you are using a trial version of Registry Cleaner you will have to download and install new trial version.

If you are already using licensed software, when move to another computer you will have to buy another license.

To repair lost registration key go to "Repair Lost Key" page and enter email you entered when purchasing this software.

If you forgot your email you should write your inquiry to our support.

Trial version of Registry Cleaner is fully functional. It scans registry for error entries but fixes only 5 found errors. There are no time restrictions for usage of this program.