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Ccleaner

M

marcosamerio

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Jul 27, 2011
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Hi my name is marcos and i live in argentina, sorry for my bad english

i have two question about this program

when i use this, i should tick the option called "erase free space" and "clean free space MFT"

i ask that beacuse i have a SSD and dont know what does this option

Bye and i hope can help me
 
Isn't this what TRIM is for?

Why are you in need of freeing up space on your SSD?
 
'Erase free space' writes data and then erases it to the free space in order to stop data being recovered, this is because you can recover previously deleted data off a hdd (with programs like this),, as the deleted files are only removed from the file table, as are not removed until the data block is overwritten.

I wouldn't use it often on an ssd as
a)It won't do much on an SSD as it will be canclled out by trim as trim will move files around in the free space causing any leftover data to become corrupt
B)It will use 3-7 write cycles on every data block on the device, which is a lot of write cycles to go through

after the 'erase free space' has been run on a tradditional HDD it will be impossible to recover any deleted files, however there is little point of using it on an SSD as they do not hold deleted data very well anyway


sneekypeet said:
Isn't this what TRIM is for?

Why are you in need of freeing up space on your SSD?
Click to expand...

no, it is completely different from trim, and this will not 'free up any space' in any way
 
Last edited:
sneekypeet said:
Isn't this what TRIM is for?

Why are you in need of freeing up space on your SSD?
Click to expand...

Agreed TRIM is for that. I dont know how CCleaner cleans free space but if it doesnt write 1's then its doing more damage then good.

cheesy999 said:
'Erase free space' writes data and then erases it to the free space in order to stop data being recovered, this is because you can recover previously deleted data off a hdd (with programs like this),, as the deleted files are only removed from the file table, as are not removed until the data block is overwritten.

I wouldn't use it often on an ssd as
a)It won't do much on an SSD as it will be canclled out by trim as trim will move files around in the free space causing any leftover data to become corrupt
B)It will use 3-7 write cycles on every data block on the device, which is a lot of write cycles to go through

after the 'erase free space' has been run on a tradditional HDD it will be impossible to recover any deleted files, however there is little point of using it on an SSD as they do not hold deleted data very well anyway




no, it is completely different from trim, and this will not 'free up any space' in any way
Click to expand...

TRIM does do that. It removes files marked invalid which frees space. Its just a lot slower.
 
TheMailMan78 said:
Agreed TRIM is for that. I dont know how CCleaner cleans free space but if it doesnt write 1's then its doing more damage then good.
Click to expand...

it's not for SSD's, see my above post, it's for wiping data off hard drives, as they can retain deleted data, it writes random data to every block of free space, so that the data that was previously on them can be recovered
 
cheesy999 said:
it's not for SSD's, see my above post, it's for wiping data off hard drives, as they can retain deleted data, it writes random data to every block of free space, so that the data that was previously on them can be recovered
Click to expand...

TRIM isnt for SSD's? Wut?
 
I think he means "erase free space" and "clean free space MFT"
 
DanishDevil said:
I think he means "erase free space" and "clean free space MFT"
Click to expand...

Ah ok. lol I was like

15422.jpg
 
TheMailMan78 said:
TRIM isnt for SSD's? Wut?
Click to expand...

This is my last 2 post's simplified for mailman
no, the Ccleaner functions not for SSD's

i'll write it simply

On a HDD, deleted files can be recovered using programs like this, that means anyone who can get hold of your hard drive (theifs, disposal companies) can see your deleted data

if you use that Ccleaner option it blanks the entire free space so it cannot be recovered, It is identical to the program you will find under the 'tools' menu as 'drive wiper], in earlier versions of Ccleaner they had not added that menu but ccleaner had the ability to do it, this was that ability, in the new versions you will still find it in the old location as well for various reasons
Click to expand...

Wipe MFT free space is similar and should work alongside

Overall: These Are features that prevent People recovering your deleted data, they are leftovers from previous Ccleaner versions before 'drive wiper' was added

Wiping free disk space
When you delete a file, Windows removes the reference to that file, but doesn't delete the actual data that made up the file on your hard drive. Over time, this data will be overwritten as Windows writes new files to that area of the drive.
This means that, given the right software, someone could reconstruct all, or parts of files that you've deleted. For privacy and security reasons, you can set CCleaner to wipe the free areas of your hard disk so that deleted files can never be recovered.
Note: Wiping free space can take a substantial amount of time.
Method 1 (Automatically wipe when cleaning):
In CCleaner, click the CCleaner icon at left.
On the Windows tab, select the Wipe Free Space check box.
CCleaner displays a warning about extra time. Click OK.
Run CCleaner as usual.
Method 2 (Manually wipe with Drive Wiper):
Select Tools > Drive Wiper
Choose the type of wipe you require:
Free Space Only will leave your normal files intact
Entire Drive will erase all of the files on the drive. WARNING, this means the whole of the partition will be erased. The drive will still be formatted, but all data will be erased. For safety reasons, this feature is disabled for the boot drive.
Choose the type of security you require (Simple Overwrite is ok for most situations)
CCleaner will warn you before proceeding
Changing CCleaner settings
To select the drives whose free space CCleaner will wipe, see this topic.
Wipe Free Disk Space limitations
CCleaner can't wipe every deleted file from your free disk space. There are some limitations, because of the way Windows stores some files. Here are some examples:
The file has been overwritten by another file (so no need to overwrite this again)
The file had been overwritten by another file before you ran CCleaner, but the second file has now been deleted as well.
The file was created almost exactly when you ran CCleaner.
 
Last edited:
cheesy999 said:
This is my last 2 post's simplified for mailman


Wipe MFT free space is similar and should work alongside

Overall: These Are features that prevent People recovering your deleted data, they are leftovers from previous Ccleaner versions before 'drive wiper' was added

Wiping free disk space
When you delete a file, Windows removes the reference to that file, but doesn't delete the actual data that made up the file on your hard drive. Over time, this data will be overwritten as Windows writes new files to that area of the drive.
This means that, given the right software, someone could reconstruct all, or parts of files that you've deleted. For privacy and security reasons, you can set CCleaner to wipe the free areas of your hard disk so that deleted files can never be recovered.
Note: Wiping free space can take a substantial amount of time.
Method 1 (Automatically wipe when cleaning):
In CCleaner, click the CCleaner icon at left.
On the Windows tab, select the Wipe Free Space check box.
CCleaner displays a warning about extra time. Click OK.
Run CCleaner as usual.
Method 2 (Manually wipe with Drive Wiper):
Select Tools > Drive Wiper
Choose the type of wipe you require:
Free Space Only will leave your normal files intact
Entire Drive will erase all of the files on the drive. WARNING, this means the whole of the partition will be erased. The drive will still be formatted, but all data will be erased. For safety reasons, this feature is disabled for the boot drive.
Choose the type of security you require (Simple Overwrite is ok for most situations)
CCleaner will warn you before proceeding
Changing CCleaner settings
To select the drives whose free space CCleaner will wipe, see this topic.
Wipe Free Disk Space limitations
CCleaner can't wipe every deleted file from your free disk space. There are some limitations, because of the way Windows stores some files. Here are some examples:
The file has been overwritten by another file (so no need to overwrite this again)
The file had been overwritten by another file before you ran CCleaner, but the second file has now been deleted as well.
The file was created almost exactly when you ran CCleaner.
Click to expand...

So what you're saying is it prevents people from recovering your deleted data?
 
First of all, thanks a lot to all to the asnwer, ¿wich software recommended to maintain full performance ssd? or what steps follow to proper maintenance

Sorry im new with this technology

Bya and thanks again to all
 
What SSD/OS do you have? we need to know if yours supports trim.
 
Nope, I don't. I reformat once every few months :p
 
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