Temp Folder Read-only Problem

I was trying to download a file earlier, and got this error:
C:\DOCUME~1\*****\LOCALS~1\Temp\gMVWDiIy.exe.part could not be saved, because you cannot change the contents of that folder.

Change the folder properties and try again, or try saving in a different location.
I checked the properties of my temp folder, and read-only was checked. I unchecked it, and tried downloading it again. It gave me the error again. I checked the properties, and the check was back. I've googled a little, and from what I saw, this usually only happens to Vista. I've tried this article, but cmd tells me:
Parameter format not correct -
Anyone know how to fix this? thanks!

Go to the security tab and see whats there.

I would tell your browser to download to another directory such as c:\downloads

Firefox is set to always ask me where to save it.

Create a folder called downloads and point it to that. I dont use the Ask me option, and I never have issues.

I still have the problem. I think it's a Firefox issue. Google Chrome is downloading fine.

Check some options from here: http://kb.mozillazine.org/Unable_to_save_or_download_files