Cannot claim free space in C:\ Seems to be hidden?

[hulkbuster]

Hello guys, i thought i would post my problem here. Since Google didn't show many results.
U see my problem is my C:\ is 200 GB which is quite less for Win7.
I h' portable drive to make a backup of my data. Which i do and its going okay.
But whenever i download some movies to drive C:\ it occupies some space and over time it becomes quite full but i also delete those files which r on C:\; but when i check the details it doesn't show the amount of free space available.
Please see snapshot.

So as it doesn't do that, i end up with more and more used space, i don't know what i should do to
claim those free spaces. At one time, my available free space was only 11 MB and Win7 showed some errors. But it quite did not claim the free space. So eventually i reverted back to the snapshot that was fresh and still working with lots of space. Due to this problem i h' to go back to previous snapshot again and again. (I use Rollback Rx for that).

So guys hope it was understandable, how do i fix this.
Please do not tell me to use Disk Cleanup tool as i h' already done that and it shows only 200 MB of file to be deleted.Where as i am talking about 80-90 GB of space. Refresh button doesn't help.
I have already tried ckhdsk C: /r from command prompt as an Administrators.
Tools like Space Sniffer and WizTree but it didn't work. I also tried the Disk Clean up tools too.





hulkbuster.

 

[RolandJS]

Do you have System Restore Points function on by any chance? If yes, consider shrinking the allocated byte-space and deleting all but the most recent SRP -- if all that is applicable to this situation?

 

[samuria]

Have you emptied the bin as when you delete they can stil be in there

 

[hulkbuster]

Do you have System Restore Points function on by any chance? If yes, consider shrinking the allocated byte-space and deleting all but the most recent SRP -- if all that is applicable to this situation?

The system restore point has been turned off as i use Rollback Rx Pro and i h' still had no problems with it.
Shrinking the volume size may interfere with Win7 or Rollback Rx. So i don't want to play with it.
Also i have already deleted every thing from Temp directory and recycle bin.
Any professional suggestion, i would be glad to receive them.

 

[Megahertz07]

You replaced System Restore with Rollback Rx Pro but it does the same job. It probably has many early points that can be deleted and gain a lot of space.
Go to Control Panel\All Control Panel Items\Folder Options and on View Tab
- Show hidden files, folders and drives
- Un mark Hide Extensions of known file types.

Open explorer, what files you have under C:\ ?