Folder Option Missing

I know that some kind of computer does not allow or invalid of running .reg extension file.I just realized this after I tried to repair a couple of computer and laptop which by the way have the same issue of problem.All of the computer and laptop has virus that hidden the folder option and regedit(both required to remove the virus).

Here to restore the hidden folder:
**Must restore the regedit first
Then go to Start>Run>type "regedit">Press "enter"

got to this section of the registery edit


[HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer]
"NoFolderOptions"=dword:0000000

[HKEY_CURRENT_USER\Software\Policies\Microsoft\Internet Explorer\Restrictions]
"NoBrowserOptions"=dword:00000000