Vista system can not see the problem of hidden folders

        Q: I selected the Show hidden files and folders option in the Select Tools -> Folder Options -> and I still can't see the hidden folders after confirmation (without any error messages). And again go to the Tools -> folder option and find that hidden files and folders are not selected at all.
How to deal with it?
A: The reason for this problem is that the virus is in the computer, and the virus automatically modified the registry to hide itself! So to solve this problem, we can change the registry key back!
1. Open the Start menu bar and type “regedit” in the search bar to open the registry and find: HKEY_LOCAL_MacHINEsoftwaremicrosoftWindowsCurrentVersionExplorerAdvancedFolderHiddenSHOWALLCheckedValue
2. Change the value of CheckedValue to dWord:00000001. Sometimes the virus will not let you modify, then you will determine the reason, and then use anti-virus software to get it.