charliebach Posted September 2, 2019 Share Posted September 2, 2019 CCleaner Version: 1.17.60. Mac IOS 10.14.6. Hi Folks, I am currently utilising the "Wipe Free Space" utility with a 7pass run, this has been working for over two whole days so far is this correct to take so long? it has completed the 7 passes , is currently on "Creating A Secondary Temporary File" which is on its fifth pass. my hard drive is only 499 GB. any advice will be much appreciated. Thanks, Chasbach. Link to comment Share on other sites More sharing options...
Moderators nukecad Posted September 2, 2019 Moderators Share Posted September 2, 2019 Wiping Free Space can take a long time, days, as you are finding out. And of course the bigger the drive the longer it will take. It has to write random data to every bit of free space on the drive, and then delete it again. And you've told it to do that seven times. There is no need for multiple passes, one is entirely sufficient. So why does CC offer multiple passes? It's simply a hang over from the old days. Multiple overwrites may have been desirable back in the 1990's (even that's debatable), but they are not required with modern drives. Have a read of this article:https://www.howtogeek.com/115573/htg-explains-why-you-only-have-to-wipe-a-disk-once-to-erase-it/ *** Out of Beer Error ->->-> Recovering Memory *** Worried about 'Tracking Files'? Worried about why some files come back after cleaning? See this link:https://community.ccleaner.com/topic/52668-tracking-files/?tab=comments#comment-300043 Link to comment Share on other sites More sharing options...
charliebach Posted September 2, 2019 Author Share Posted September 2, 2019 Hello nukecad, Thanks for the reply much obliged to you, Chasbach. Link to comment Share on other sites More sharing options...
Mjfuller Posted September 16, 2019 Share Posted September 16, 2019 Days??? The warning instructions said it could take several hours, not days. Mine has been running now for almost 24 hours. Had I know it might be days running, I would not have done this. Also, Nukecad, or others, what is the security setting "zero out" mean compared to 7 passes? Thank you. Link to comment Share on other sites More sharing options...
charliebach Posted September 16, 2019 Author Share Posted September 16, 2019 Hello Mjfuller, i would take the advice from nukecad also read the link he posted which makes good sense, I will only be using Zero or 1 pass from now on as this seems to be secure enough, Chasbach. Link to comment Share on other sites More sharing options...
Moderators nukecad Posted September 17, 2019 Moderators Share Posted September 17, 2019 12 hours ago, Mjfuller said: what is the security setting "zero out" mean compared to 7 passes? I'm not sure what you are meaning? Where can you see "zero out" as a setting? I only see the following: "Zero Filling" a drive is a different thing to wiping free space. Zero filling is a disk formatting technique that overwrites everything on the drive, not just the free space. The equivalent in CCleaner is selecting "Entire Drive" to wipe rather than "Free Space Only". CCleaner will not let you select "Entire Drive" for the system disk (usually C:) because that would remove everything including the Windows operating system.. See this: https://www.techopedia.com/definition/10143/zero-filling *** Out of Beer Error ->->-> Recovering Memory *** Worried about 'Tracking Files'? Worried about why some files come back after cleaning? See this link:https://community.ccleaner.com/topic/52668-tracking-files/?tab=comments#comment-300043 Link to comment Share on other sites More sharing options...
Mjfuller Posted September 18, 2019 Share Posted September 18, 2019 Nukecad: here is a screen shot of my Ccleaner window. Notice the Security window that shows the "zero out" option. The other options were 7 passes or 35 passes. It finally stopped running and completed it's erasing after somewhere between 24 and 48 hours. Link to comment Share on other sites More sharing options...
Moderators nukecad Posted September 19, 2019 Moderators Share Posted September 19, 2019 Ah, my apologies. I was looking at the Windows version not the Mac version. The Mac version has the three options - Single pass, 7 pass, and 35 pass.https://www.ccleaner.com/docs/ccleaner-for-mac/ccleaner-for-mac-settings/ccleaner-for-mac-file-deletion-settings Note that a lot of the CCleaner documentation is somewhat out of date and they are working on rewriting/updating it. It would appear that 'Single pass' has been renamed to 'Zero out' in the Mac version of CCleaner. (Because that's what Mac's own Disk Utility calls it). *** Out of Beer Error ->->-> Recovering Memory *** Worried about 'Tracking Files'? Worried about why some files come back after cleaning? See this link:https://community.ccleaner.com/topic/52668-tracking-files/?tab=comments#comment-300043 Link to comment Share on other sites More sharing options...
Mjfuller Posted September 20, 2019 Share Posted September 20, 2019 Nukecad: thanks for your info. God forbid they should use a logical and understandable term, like "single pass." Link to comment Share on other sites More sharing options...
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