Q: What is the Windows Registry?

A: The Windows Registry is a hierarchical database that contains information about the operating system, its components, application programs, and users.

If you look at the registry structure, you can see a tree consisting of nested containers: keys, and subkeys. These are like folders. The data itself is kept in the registry entries, which are like files. Each entry includes a name, a data type defining the format of data that the entry can store, and a value where the data is stored.

A group of keys, subkeys, and values comprise a registry hive. For example, data related to the currently logged on user profile is contained in the corresponding hive (under HKEY_CURRENT_USER).

Q: Why is the Registry so important?

A: The registry is important because it stores vital information about your Windows system and its configuration, as well as info 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.

Q: Why do I have to clean the registry?

A: The truth is that usual daily work of your Windows computer results in numerous registry keys and files being changed in the Windows registry. Many of these entries become obsolete or inaccurate, impairing your systems ability to run smoothly. Even if you properly uninstall a program, it still might leave a few keys and values in the registry. All this litter accumulates over time, causing your computer to slow down, stumbling over missing .exe or .dll files and other hitches. Finally, it stops running.

Q: Why simple cleaning does not help, and why compacting is also required?

A: When information is removed from registry, just like if it was a file system some empty space is left between data portions. This empty space leads to poor performance, because the system and applications need to browse through wasted space in search for data. That is why the registry has to not only be cleaned, but also compacted.

Q: What systems does Registry Cleaner Pro work on?

A: Registry Cleaner Pro can works on Windows XP 32-Bit / Windows XP 64-Bit / Windows Vista 32-Bit / Windows Vista 64-Bit. Registry Cleaner Pro is not available for Macintosh, Unix or Linux.

Q: Does Registry Cleaner Pro install any other software onto my PC?

A: No! When you scan with Registry Cleaner Pro, no other software is installed onto your PC. Our Registry Cleaner Pro Scan Technology is 100% Guaranteed Adware Free, Spyware Free, and Virus Free.

Registry optimization tips and tricks:

	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.
	A registry maintenance tool should be flexible enough to provide not only bulk backup and cleanup, but also selective undo, since it is not always possible to predict how this or that change will affect application operation.
	Consider compacting your registry after cleanup. Generally, scan, cleanup and then compact should be performed weekly, as well as after software or hardware changes.
	Remember that registry compact must be carried out just before system shutdown or restart, otherwise the system restores registry to original state, and compact fails.

What to look for in when choosing a registry maintenance tool?

	Many registry maintenance tools use so-called Deep Scan, or heuristics analysis which, for example, may treat the peculiarities of your configuration as errors. As a result, these issues are removed, and you lose essential information. We offer you efficient and small-footprint Smart Scan based on high-level expertise and knowledge.
	A registry maintenance tool should be flexible enough to provide not only bulk backup and cleanup, but also selective undo, since it is not always possible to predict how this or that change will affect application operation.
	It is recommended that you use the software tool that is aware of when exactly the compacting process should take place.
	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.