I'm missing 10 gigs of SSD space.

[trunolimit]

I have a crucial M4 120GB SSD. I'm running win7 home premium on an acer aspire S3. When I right click on the c drive I see that I'm using 55GB of total space. When I highlight all the file and folders in explorer on the C drive and right click I only get a total of 44GB. This means that there are 11 GB being used somewhere and I have no idea where or what is using that space.

Any Ideas? I ran a defrag and the built in system cleaning tool. still the space alludes me.

I enabled the viewing of hidden folders and I have a couple of megs in a hidden folder.

[mikec]

I thought defraging a SSD was a no no?

[rfm33428]

I could be mistaken, but I believe that your forgetting the directory structure that it uses to organize the files and folders. That why you see a difference in space. I've done the same thing and have that happen also. I looked at different drives with different amounts of data. It appears that the more data is on a drive the more space it uses for that structure.

[trunolimit]

Originally Posted by rfm33428

I could be mistaken, but I believe that your forgetting the directory structure that it uses to organize the files and folders. That why you see a difference in space. I've done the same thing and have that happen also. I looked at different drives with different amounts of data. It appears that the more data is on a drive the more space it uses for that structure.

At first I thought you were referring to cluster size where 8 bytes of info doest actually take up 8 bytes depending on the cluster sizes. But if that were the case I'd see the same amount of usage in both windows. I'm thinking I have a faulty SSD.

Why aren't you supposed to defrag an SSD?.

[flaminio]

Originally Posted by trunolimit

Why aren't you supposed to defrag an SSD?.

Two reasons:

1) Because it's pointless. SSDs don't store data the way physical drives do, and so there is no speed gain to be had by defragmenting; and

2) It will diminish the life of your SSDs. SSDs can do a large but not infinite number of write cycles. A defrag is very write cycle intensive, and regular defragging can significantly impact the life of the drive.

[flaminio]

Originally Posted by trunolimit

Any Ideas?

Try running a program like SpaceMonger: http://www.sixty-five.cc/sm/

This will tell you where all your disk space is going.

[rfm33428]

Something I discovered and should have taken into consideration are the hidden files and folders. I read from this link..... http://forums.cnet.com/7723-6142_102...le-properties/ .

Using Spacemonger mentioned by Flaminio, hiberfil.sys and pagefile.sys are your biggest hidden files among other smaller ones.

[tokenuser]

Originally Posted by rfm33428

Using Spacemonger mentioned by Flaminio, hiberfil.sys and pagefile.sys are your biggest hidden files among other smaller ones.

They are also files that get written to A LOT. If you have a standard HDD in the mix se what you can do about moving those files off the SSD. Once memory has been rewritten to x" times, it will be locked out and not be able to be used again, so an SSD should really have thing that don't get rewritten often.

[trunolimit]

Originally Posted by tokenuser

They are also files that get written to A LOT. If you have a standard HDD in the mix se what you can do about moving those files off the SSD. Once memory has been rewritten to x" times, it will be locked out and not be able to be used again, so an SSD should really have thing that don't get rewritten often.

Thanks for the advice. I moved the pagefile to another hard drive. Space Monger is pretty cool. I found the missing gigs. they were system files.