"Folder options" .. dissappeared?? here is the solution.
 

maybe one day you countered BRONTOK virus , which can spread itself through your files , and it also make the "folder options" from "Tools" menu disappear...

and because we need the folder options menu because it is the only way to make hidden files be discovered.....

So what is the Solution??

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follow the steps:

1-Start
2-Run
3-Write the command " gpedit.msc". {Group Policy window will open}
4-Expand from the left " user configuration" .
5-Expand " Administrative Templates"
6-Expand " Windows Component " .
7-Click on " Windows Explorer "
8-Choose from the right(maybe the third line) " Removes the folder options menu item from..." then two clicks.
9-Choose "Disabled"

And now this will retrieve your precious "Folder Options" ...

But this will not Cure you computer from the virus and its damages >>So use an anti-Virus program to do that >>> I recommend "Kasper Sky"

I hope that will help.. Bye