MFJA Posted April 1, 2009 Share Posted April 1, 2009 Hi, I have installed the version of ccleaner v2.18.878. when I run the registry cleaner I always find the following entry that I am not able to delete: Invalid file extension (80b8c23c-16e0-4cd8-bbc3-cecec9a78b79) HKCR \ (80b8c23c-16e0-4cd8-bbc3-cecec9a78b79) And in the Resgistry equals: HKEY_CLASSES_ROOT \ (80b8c23c-16e0-4cd8-bbc3-cecec9a78b79) Does anyone know why and how to remove it? Thank you Link to comment Share on other sites More sharing options...
ident Posted April 2, 2009 Share Posted April 2, 2009 Have you tryed removing it manually? start - run - regedit No fate but what we make Link to comment Share on other sites More sharing options...
Robbie Posted April 3, 2009 Share Posted April 3, 2009 I had exactly the same problem with the same registry entry. No amount of running the Registry cleaning part of CCleaner would remove this entry. I also couldn't manually delete it via the Registry either as I was getting a security warning. I then thought about what programs I had installed recently - the main one was Avira AntiVir Personal and specifically I had chosen an option (or at least I think I chose the option) under Configuration - (tick Expert Mode option) - General - Security to "Protect files and registry entries from manipulation". I unchecked that option and was then able to delete this registry entry and it has stayed deleted, even after I retick that security option. As the registry entry is no longer there (I did a search through the Registry after re-enabling that security option, saving the configuration and restarting the computer) I don't know if that security option is really enabled any more but it has at least sorted out the entry that CCleaner kept finding and then failing to delete. Link to comment Share on other sites More sharing options...
Moderators Andavari Posted April 4, 2009 Moderators Share Posted April 4, 2009 I used to always exclude that registry key when I used AntiVir, rather the key was actually needed or not I just didn't like the ideal of messing with the installed antivirus. Link to comment Share on other sites More sharing options...
MFJA Posted April 5, 2009 Author Share Posted April 5, 2009 Have you tryed removing it manually? start - run - regedit Yes, but do not remove leaves Link to comment Share on other sites More sharing options...
MFJA Posted April 5, 2009 Author Share Posted April 5, 2009 I had exactly the same problem with the same registry entry. No amount of running the Registry cleaning part of CCleaner would remove this entry. I also couldn't manually delete it via the Registry either as I was getting a security warning. I then thought about what programs I had installed recently - the main one was Avira AntiVir Personal and specifically I had chosen an option (or at least I think I chose the option) under Configuration - (tick Expert Mode option) - General - Security to "Protect files and registry entries from manipulation". I unchecked that option and was then able to delete this registry entry and it has stayed deleted, even after I retick that security option. As the registry entry is no longer there (I did a search through the Registry after re-enabling that security option, saving the configuration and restarting the computer) I don't know if that security option is really enabled any more but it has at least sorted out the entry that CCleaner kept finding and then failing to delete. Thanks friend, the problem is already solved. Indeed this was the solution. You're a genius. Thanks again Link to comment Share on other sites More sharing options...
thegfp Posted April 7, 2009 Share Posted April 7, 2009 I had exactly the same problem with the same registry entry. No amount of running the Registry cleaning part of CCleaner would remove this entry. I also couldn't manually delete it via the Registry either as I was getting a security warning. I then thought about what programs I had installed recently - the main one was Avira AntiVir Personal and specifically I had chosen an option (or at least I think I chose the option) under Configuration - (tick Expert Mode option) - General - Security to "Protect files and registry entries from manipulation". I unchecked that option and was then able to delete this registry entry and it has stayed deleted, even after I retick that security option. As the registry entry is no longer there (I did a search through the Registry after re-enabling that security option, saving the configuration and restarting the computer) I don't know if that security option is really enabled any more but it has at least sorted out the entry that CCleaner kept finding and then failing to delete. superb, that worked for me too i read a link from the site who make the avira programme and one of the mods said that its a private file for their use and are not allowed to discuss it! mine is now gone too man thanks Link to comment Share on other sites More sharing options...
_Rich Posted April 5, 2010 Share Posted April 5, 2010 Thanks! I had the same problem and now it is gone. Link to comment Share on other sites More sharing options...
skaybaltimore Posted May 3, 2010 Share Posted May 3, 2010 I had exactly the same problem with the same registry entry. No amount of running the Registry cleaning part of CCleaner would remove this entry. I also couldn't manually delete it via the Registry either as I was getting a security warning. I then thought about what programs I had installed recently - the main one was Avira AntiVir Personal and specifically I had chosen an option (or at least I think I chose the option) under Configuration - (tick Expert Mode option) - General - Security to "Protect files and registry entries from manipulation". I unchecked that option and was then able to delete this registry entry and it has stayed deleted, even after I retick that security option. As the registry entry is no longer there (I did a search through the Registry after re-enabling that security option, saving the configuration and restarting the computer) I don't know if that security option is really enabled any more but it has at least sorted out the entry that CCleaner kept finding and then failing to delete. Thanks. I had the same problem, and your solution worked like a charm. I joined this forum just to say "thanks". Link to comment Share on other sites More sharing options...
learnaholic55 Posted June 4, 2013 Share Posted June 4, 2013 Hi. Old thread, but same issue. I too kept having this show up and unable to delete/clean with CCleaner. But just found info (another forum) that claims it is part of Avira Anti-virus - which I have. So, I'll not worry about it...until I am shown it is NOT a Avira file extention. Any further insight welcomed. Link to comment Share on other sites More sharing options...
Moderators DennisD Posted June 4, 2013 Moderators Share Posted June 4, 2013 Hi learnaholic55 , and welcome to the forum. If you're not sure as to whether you want to follow Robbie's instructions on how to delete it, then the best option is Andavari's "Exclusion" of the entry from any future scans. You won't see it again. Excluding files, folders, and Registry entries: Link to comment Share on other sites More sharing options...
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