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C cleaner finds invalid or empty files in registry scan


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#1 waspnest2

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Posted 18 August 2011 - 07:36 AM

I ran a registry scan with C cleaner and it showed the following two errors:

1) Invalid or empty file class .shtml\OpenWithProgids\shtmlfile. This is located in HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\FileExts\.shtml\OpenWithProgids

2) Unused registry key .sys\OpenWithList. Path same as above as far as and including File Exts.

Do I have errors here that need to be put right?

Thanks for any help.

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#2 Allan

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Posted 18 August 2011 - 07:38 AM

While those are completely benign items and no harm will come from deleting them, DO NOT USE REGISTRY CLEANERS. Just ignore what ccleaner found and don't bother to scan again. So called registry cleaners cause problems, they do not cure or fix anything.

Edited by Allan, 18 August 2011 - 07:39 AM.


#3 waspnest2

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Posted 18 August 2011 - 07:44 AM

Allan,

Thanks for your super quick reply.

I did delete them a few times but they kept reappearing in the subsequent scans.

I thought maybe I had some corrupted or missing files and needed to do something about that.

So, these are not important and I can ignore them?

#4 Allan

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Posted 18 August 2011 - 08:12 AM

Correct. And again, you'll be a lot better off in the long run not using any registry utilities.

#5 waspnest2

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Posted 18 August 2011 - 09:22 AM

I do always backup beforehand, but don't use it so much now.

I do use it a lot as a cleaner for Windows and Applications though, as I find it helps to keep the pc speed up. I only have 256mb RAM on this old pc so it needs all the help it can get!


Thanks again for your help, Allan!

#6 Animal

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Posted 18 August 2011 - 11:53 AM

For the record and anyone else reading this topic, Bleeping Computer's position of registry cleaners and optimizers is as follows:

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.

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