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Registry Scan


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#1 mrsmh1

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Posted 26 October 2011 - 09:43 AM

Any recommendations for a safe and easy to use free online registry scan and repair? Thanks!

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#2 Queen-Evie

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Posted 26 October 2011 - 09:57 AM

Is there a reason why you want to scan/repair the registry?

Bleeping Computer DOES NOT recommend the use of registry cleaners/optimizers for several reasons:

  • 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. For a more detailed explanation, read Understanding The Registry.
  • 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.



#3 mrsmh1

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Posted 26 October 2011 - 10:14 AM

I'm aware of the warnings you posted, which is why I'm seeking a reputable product.

I've been having some issues and I want to check for possible registry corruption.

#4 Didier Stevens

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Posted 26 October 2011 - 02:19 PM

I've been having some issues and I want to check for possible registry corruption.


Did you experience error messages that point to the registry? For example with COM or ActiveX objects? Or is it a hunch?

If you've been using your computer for some time, and have installed and uninstalled several programs, a registry scanner is bound to find inconsistencies in the registry.
But it's unlikely they cause issues.

Edited by Didier Stevens, 26 October 2011 - 02:19 PM.

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#5 mrsmh1

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Posted 26 October 2011 - 10:58 PM

No errors, but odd start ups and processes in task mgr unrelated to un/installs.




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