If you want to disable the warning message while un checking “Hide Protected Operating System Files” option in folder options in Windows 8
You must have seen that in the view tab of Folder Option, there is an option “Hide Protected Operating System Files”. The name makes its purpose clear, it hide the system files to protect them. But sometimes, you need to uncheck this option to see your personal files in an external drive. According to Microsoft, Windows 8 will not be attacked with any malicious software, unless you install it with the required permission. But your USB drive can be attacked by viruses in some other machine. One common virus attack on files is to change the type of file or folder to system files. Then these files will not be seen as by default the option “Hide Protected Operating System Files” is checked. If you connect that device into your Windows 8 computer, then you have to uncheck this option.
But if you try to uncheck it, you will get a warning message as shown above. By confirming it, you can proceed further. If you want to disable this warning message, follow the instructions carefully.
1. Open the Run window and type RegEdit and hit Enter. This will open the Registry Editor.
2. Now navigate to HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\Folder\SuperHidden.
3. There you will see a registry key named WarningIfNotDefault. Delete that registry key by right clicking on it
and selecting Delete and you are done with it. In case you don’t want to delete it, rename it to another name.
That’s it. Now if you uncheck the option “Hide Protected Operating System Files” it will not show you any warning message.