When you try to uncheck "Hide Protected Operating System Files (Recommended)" Option in Folder Options in Windows OS, you get a warning message asking for confirmation as shown in following screenshot:

It becomes quite annoying if you frequently enable/disable this option.
Today in this tutorial, we'll tell you how to completely remove this warning message so that you can enable/disable the option without getting the irritating warning message window.
1. Type regedit in RUN or startmenu search box and press Enter. It'll open Registry Editor.
2. Now go to:
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\Folder\SuperHidden
3. In right-side pane, delete String value "WarningIfNotDefault".

That's it. Now you'll not receive the warning message.
PS. If you want a ready-made registry script to do the task automatically, download following ZIP file, extract it and run the desired REG file:
This article was posted by VG in following section: Troubleshooting, Windows 7, Windows Vista, Windows XP.
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imran
how can we hide the Operating system details from Microsoft when it checks for whether OS is genuine or not (this is in case we use pirated copy)...please reply me on my email -
Ramesh
Please ,
Tell me how to completely disable "Hide Protected Operating System Files (Recommended)" option from showing in folder options in windows 7.
Also tell the secret way so we can use this options even after hiding.
VG
^^ Delete following key to remove it from Folder Options:
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\Folder\SuperHidden
And to enable/disable this option, you can change value of "SuperHidden" DWORD value present in following key:
HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced
macc
I recently picked up a virus on my pen drive and my anti virus (avg free) picked it up and quarantined the infected files.what the virus actually did was it converted all my folders on the pen drive to .exe files and I saw that the actual folders are now only visible, if you set your system to show ' protected operating system files', and i cant find anything as how to change that folders back to normal folders again.
VG
^^ Open Command Prompt and navigate to your Pen drive letter using CD command. Then provide following command for folders:
attrib -s
macc
hi VG
I don't know CD command
my pen drive letter is " J "
please please give me the step by step code
thanks
VG
CD J:
attrib -s
macc
C:\Documents and Settings\USER>CD J:
J:\
C:\Documents and Settings\USER>attrib -s
Not resetting hidden file - C:\Documents and Settings\USER\NTUSER.DAT
Not resetting hidden file - C:\Documents and Settings\USER\ntuser.dat.LOG
Not resetting hidden file - C:\Documents and Settings\USER\ntuser.ini
Nothing change
VG
^^ Use following commands:
J:
attrib -s