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Posts posted by Augeas

  1. Do you mean that when you do a scan nothing is returned, or are you searching by file/path name? When you say blocked do you mean ignored?


    You can show all your deleted files by selecting 'Show Files in Hidden Sys Directories' and 'Show Zero Byte Files' in the Options box.


    Do you have anything entered in the Filename or Path box? This will restrict the results shown - to the point of zero.


    Are you using CCleaner secure deletion to delete files? This will alter the file names.


    Are you deleting to the Recycler and then emptying that? These deleted files will have altered names.

  2. Very true about the Gutman passes, but still CCleaner should deliver as it say it will.

    I agree entirely, but nattering about Gutmann is more interesting. I can't understand why such a myth has been swallowed wholesale for so many years by countless users (and developers, Piriform!) when a few minutes on Wikipedia would bring some sense to it all.


    But back to the subject. CCleaner V2.02.527 on XP seems to have cured the 'not overwriting temp int files' problem I reported earlier in this thread. I have as yet to test this extensively but it looks good so far - thanks Piriform. (I like the new Recuva display as well.) I can't add to the Recycler problem as I rarely use it.




    PS I'm sure Piriform know all about Gutmann, but have to include it as a sop to the masses.

  3. I wouldn't get too hung up on Gutmann and his 35 passes. His paper was delivered getting on for twelve years ago and applied to what is now obsolete disk technology. Gutmann later stated that his theory had been overtaken by events and "A good scrubbing with random data will do about as well as can be expected".


    One overwrite will give you as good a deletion as anything else. If you hold the advance plans for the USA's invasion of Iran on your disk you shouldn't be messing about with CC.




    (To any goverment agencies scanning the internet, that was a joke.)

  4. I think we need some clarification here. Does 'Secure deletion' apply to all the files that CC deletes? (Excluding index.dat files which are deleted by the O/S startup files.) I was under the impression that it does. So all those temp files, temp internet files, etc will be overwritten?


    If so, then secure delete certainly does not work. I very rarely delete files to the recycler (I use shift/del) so I can't pontificate on that. But I know that when I run CC in secure delete mode it produces a variable number of ZZZZZZ.ZZ files (and all of those I have tested have been overwritten), and a whole string of files which retain their original name and, whilst not all are capable of being recovered due to the nature of Windows, the majority are recoverable.


    I'm not really too worried about this, if I have a sensitive file I copy it to a folder which is marked for emptying by CC, and these files seem to be renamed and overwritten OK. But if I'd surfed rather injudiciously I'd be worried at all those temp internet files lying there ready to be recovered and no (easy) way of getting rid of them.



  5. I am a little confused!


    I don't really know how CCleaner works. If you run Analyze and the index.dat files come up as marked for deletion, and you don't actually press the Run Cleaner button, I'm not sure whether the files would be deleted on next bootup. My guess would be that no action would be taken and the files would not be deleted.


    When you run CCleaner then the index.dat files are marked for deletion, but remain on your PC, still being updated as and if you surf, until the next time you reboot. I believe they are deleted on bootup, not on closedown. They are recreated either by Windows or when you open IE (I believe they are not used in other more sensible browsers).


    In any event this is more interesting than essential. I think you could spend the rest of your life quite happily without giving a thought to these files. They exist because Microsoft says so, they serve no useful purpose to mankind or your PC.


    To confuse matters more it's not necessary to run the Analyse part of Cleaner, if you are happy with your settings then you can just go ahead with the Run Cleaner part only.



  6. I think that Wallaby means the index.dat files which are, as he says, marked for deletion when CC runs. As they can't be deleted when Windows is running they are indeed deleted at the next boot-up. Of course when Windows kicks in it notices that they are missing and recreates new, smaller and empty index.dat files.


    If you don't want them to be deleted then untick the 'Delete Index.dat Files' box in the Cleaner Settings on the left hand side.


    The index.data files contain an exhaustive list of all websites you have visited. There's no absolute rule whether the files should or shouldn't be deleted, it's your PC after all. I delete them and I should think that that would be the decision of most CC users. I can't see any compelling reason to keep them.



  7. Alright then, I'll rephrase it. If there's some deleted file on the disk that could be recovered by this enterprising felon, I want to be able to find it first so that I can take some action to prevent it falling into said felon's hands. The thought of having deleted files on a disk that might be important and you can't find them is scary.


    In my experience the LLLLL.LLL bears no relationship to the original file name, so it's no help to that annoying felon, who seems to be everywhere. Some names are L.L and some are LLLLLLLLLLLL.LLLLLLLLL. Also I've found that these renamed files are overwritten properly, in as much as I haven't been able to recover one of these files to a readable state.


    I have also read recently, I can't remember where, that the recover after overwriting by interpreting the magnetic 'shadows' is more myth than reality, and there's no software available that will do this. I'll try to dig this up again.



  8. I have written about CCleaner NOT erasing file content and particularly file names numerous times.

    But this is only your second post!


    Actually the secure delete problem, whilst being a nuisance, is not really critical. That is if you're not spending all day downloading highly dubious stuff. I didn't even use this option until I deleted a financial file than then realised that one day I might replace either my hard drive or PC. But all you have to do is to just surf and not use CC, and as long as your internet temp file is large enough you will overwrite the problem deleted file. Then use CC.


    Now, if I want to delete a private file I first alter the critical data under edit, without altering the size of the file, and save it. I then open it with wordpad and foul up the contents so it's not openable with it's original application. Then I rename it to some other file type and put it into the 'folders to empty' folder and run CC with single pass overwrite (CC seems to overwrite the contents of this folder OK, and rename the files). This method may not be forensically spot on, but it's a good try.


    After all the main principle of disk washers is to fill the disk with crap files and then delete them, similarly to what I've described individually.


    I realise that this might not be suitable for people with large gb's of data to be deleted, or a lot of critical files that need to be cleaned every day, but I'm not in that category.


    Yes, CC to remove file names please.



  9. I note that I can also specifiy folders to exclude from processing, but I'm not sure whether that is recursive... i.e. can I specify a top-level folder and all subfolders below will be excluded too?

    I would think so, as the opposite applies - i.e. a folder specified for emptying deletes all subfolders.


    It's easy enough to test.



  10. No, I don't have cipher on my version of XP Home. Cipher is not intended for frequent use, according to Microsoft. Perhaps because it takes so long?


    I'm going to try Disk Redactor, freeware at http://www.cezeo.com/products/disk-redactor/ This - according to the blurb - overwrites all free unused space and writes zeros over all deleted files. The filenames remain but the files are zapped. It's not only free but small (375 kb) and portable.



  11. It was new to me too, but after Googling it, yes, it is a command line option, not a CCleaner option.


    To think that the answer to everyone's 'How to get rid of deleted files' question was under our noses all the time. I wonder why such a useful tool seems to be so unknown? In my XP Inside Out book it isn't even mentioned.


    There seems to be some doubt whether it's available in XP home, which I'm using. You should be OK in Pro. Let us know if you try it.



  12. An easier way to delete multiple 'one-off' folders is to have a master folder, called crap or whatever you wish, and enter this in the custom folders to delete in CCleaner. Then just drag all the folders and files you want to delete into this folder, and run CC. Everything will be wiped.


    This way you don't have to mess around adding and deleting folders in CC. It's rather like CC having its own recycle bin.



  13. However, nothing is getting securely deleted.



    Hooray! I've posted about this at least three times before with absolutely zero response, so it's a relief to know I'm not alone in the universe.


    I've found this to be common with all releases of CC, at least in the last year when I started to use secure deletion. CC seems to delete some files, overwriting the file name with a random capital letter, such as LLLLL.LL, but the vast majority of files remain under their own name and many are recoverable with ease in an unblemished state. CC appears to overwrite those files I dump into a custom folder which I have set up for CC to empty, but all the rest, including temp internet files, are untouched.


    I'm running XP/SP2 home, IE 6.0 with no other security s/ware except AVG a/virus.



  14. Well yes, in a way. As far as I can tell files will be written in the first available free area of the disk. So if you wrote 100 files and then used CC the space that these 100 files occupied becomes free space and will be overwritten with the next 100 files you write. However if you previously wrote 1000 files and then went into the pattern of using CC, writing 100 files, using CC etc. then 900 deleted files will not be overwritten and will be accessible.


    To get rid of these notional 900 files just stop using CC for a while and as you write more files, using up more free space, they will be overwritten. This theory of course depends on the files you are writing not being sensitive. Just do a lot of browsing on some harmless websites.


    I think that this is a crude representation of how disk cleaners work, by completely filling the disk with large files, overwriting them multiple times, and then deleting them and their entries in the file allocation tables.



  15. 1) No. It means that the space occupied by all older files have been overwritten by later (2007) files. It's just chance, or should I say the way the file mgmt software works. I also have two files from the original install showing, they must be somewhere way off the beaten track. If you use CCleaner regularly then files will go through the process of being overwritten frequently.


    2) No. If there is a particular deleted file I want scrubbing I don't use CC for a while, and eventually it gets overwritten, then I run CC. Apparently the facility to delete 'deleted' files is being developed.



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