You don't have permission to modify files in this network location., Contact the admi

When I try to save images or files, I get the error:

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C:\(Location, etc.)\...\...
You don't have permission to modify files in this network location.

Contact the administrator per permission to make these changes.
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It only started up recently, though I don't know what changes I may have done recently to cause it. I use Win7 32-bit, been using it for at least a year now, but only a few days ago it started doing that. For example, I save an image off the net into a folder, and it gives me that error. It saves a 0kb File named after the image file. I save the image again, and it asks me if I want to overwrite the existing file. I say Yes and it saves successfully. But I have to repeat this process every time I save something now. Googling an answer gives erroneous and unsure info/answers, other than that ESET may be causing it. Any help?
Thanks!

 

Did you update to the latest version which fixes the issue for those who claimed Eset caused it?
http://windows7forums.com/windows-7-networking/4528-permission-modify-files-network-location.html