I have used and tried many registry cleaners, and jv16 is my all time favorite. It has a great interface that is quick and easy to navigate yet has a host of useful features and utilities. It is too bad more software does not have this level of comprehensive quality.
My biggest concern with registry cleaners is removing false positives that may damage applications and/or systems. I am quite conservative in using registry cleaners. I look at every entry before making any deletions. Of course if there are thousands of “errors”, I haven’t the time to look at all of these, so I abort any “fixes” – “do no harm” is my motto.
About the only time I have experimented with wholesale fixes is on systems that have been trashed and need a re-installation anyway. In most cases fixing the thousands of “errors in the registry” makes no difference and a re-installation is needed. There have been a handful of computers however, that a wholesale fix of thousands of “errors” make the system usable again. That was surprising and intrigued me. I still wouldn’t trust those systems, but the positive change makes me wonder what was fixed.
As a techie, I have seen thousands of desktop of “ordinary users” and there are only two registry cleaners I have seen installed on some of these computers – ccleaner and regcure – nothing else. Us geeky types may try many others but these are the only two I have seen in large numbers in the wild. I have seen many damaged systems in my travels and I often wonder whether these two registry cleaners are the causes of some of the issues on these computers. Ccleaner is reportedly very safe and conservative in its registry cleaning but I still wonder if the damage I have seen was caused by this (applications no longer working requiring re-installation, applications loosing their product key activation, cannot install printers, freezes and lockups).
I would be interested in knowing how the jv16 staff attempts to avoid application and system damage from jv16 ”registry cleaning” with the following comments - obtained on the web - in mind:
Bleeping Computer DOES NOT recommend the use of registry cleaners/optimizershttp://www.bleepingcomputer.com/forums/topic121827.html
Registry cleaners are extremely powerful applications that can damage the registry by using aggressive cleaning routines and cause your computer to become unbootable.
The Windows registry is a central repository (database) for storing configuration data, user settings and machine-dependent settings, and options for the operating system. It contains information and settings for all hardware, software, users, and preferences. Whenever a user makes changes to settings, file associations, system policies, or installed software, the changes are reflected and stored in this repository. The registry is a crucial component because it is where Windows "remembers" all this information, how it works together, how Windows boots the system and what files it uses when it does. The registry is also a vulnerable subsystem, in that relatively small changes done incorrectly can render the system inoperable.
Not all registry cleaners are created equal. There are a number of them available but they do not all work entirely the same way. Each vendor uses different criteria as to what constitutes a "bad entry". One cleaner may find entries on your system that will not cause problems when removed, another may not find the same entries, and still another may want to remove entries required for a program to work.
Not all registry cleaners create a backup of the registry before making changes. If the changes prevent the system from booting up, then there is no backup available to restore it in order to regain functionality. A backup of the registry is essential BEFORE making any changes to the registry.
Improperly removing registry entries can hamper malware disinfection and make the removal process more difficult if your computer becomes infected. For example, removing malware related registry entries before the infection is properly identified can contribute to system instability and even make the malware undetectable to removal tools.
The usefulness of cleaning the registry is highly overrated and can be dangerous. In most cases, using a cleaner to remove obsolete, invalid, and erroneous entries does not affect system performance but it can result in "unpredictable results".
Unless you have a particular problem that requires a registry edit to correct it, I would suggest you leave the registry alone. Using registry cleaning tools unnecessarily or incorrectly could lead to disastrous effects on your operating system such as preventing it from ever starting again. For routine use, the benefits to your computer are negligible while the potential risks are great.
Wikipedia DOES NOT recommend the use of registry cleaners/optimizershttp://en.wikipedia.org/wiki/Registry_cleaner
There are a number of problems with the concept of a registry cleaner. Most notably, there is no reliable way for a program to know whether any particular key is 'junk' or not. Windows is closed source, so registry cleaner designers can not know for sure whether any particular key is still being used by Windows or what detrimental effects removing it may have; leading to examples of registry cleaners causing loss of functionality and, potentially, system instability. Many registry cleaners advertised are rogue software, often appearing with a website saying something similar to "Performance Scan Results: Bad. You need a registry cleaner"
With regards to performance, while on Windows 9x computers, it is possible that a very large registry could slow down the computer's startup time; memory management and on-disc structure of the registry is entirely different on the NT line of Operating Systems (including Windows XP and Vista). Slowdown due to registry bloat is thus far less of an issue in modern versions of Windows. More importantly, however, the difference in speed due to the use of a registry cleaner is negligible: rarely do they remove more than a few kilobytes from the total size of the registry. In fact, technology journalist Ed Bott has claimed that no-one has ever successfully managed to measure any significant performance increase from the use of a registry cleaner. Any potential user of a registry cleaner must thus balance a probably negligible performance increase against a non-zero possibility of system instability.
Lastly, Microsoft does not advocate the use of these tools through its support website.