In my other thread i had a problem watching videos without lag.
I decided to re-install Windows 7 and when it was done, i noticed i had only around 3 GB of 18 free.
Where is this 15 Gb coming from and how can i increase my amount of space?Windows 7 will generally take up about 10-15 GB. There's nothing you can do about it other than getting LESS space demanding operating system (Linux), a new hard drive, or deleting some unneeded files with a tool like CCleaner.

Edit: Wait, how much storage does the hard drive report on it's box? If you had more space before, it's likely something went wrong with the partition stage of your reinstallation.How did you reinstall the OS? Did you format first?An 18G partition is a bit tight for a Win7 install with apps...
Just sayin... QUOTE from: Allan on February 16, 2011, 03:59:42 PM

How did you reinstall the OS? Did you format first?

So you now have a Windows folder in Explorer and a Windows old....correct ? ?

1st step i would take is increase the C: partition to at least 40G....more if need be.

How?
and i deleted the windows old folder.

Did you empty the recycle bin and reboot?