Fix the problem of Show hidden files and folders getting reset

This is a common problem these days that the option of “Show hidden files and folders” always gets reset each time when we set it to show the hidden files. This is sure a case of infected system either with Trojan or virus.

Possibly the system is infected by a virus named “amvo.exe”. So let’s remove this first to be on a safer side.

Steps to remove amvo.exe:

1.    We need to delete following files
•    amvo.exe
•    amvo0.dll
•    amvo1.dll

2.    Open command prompt by typing cmd in the Run box. Then type
•    cd windows\system32
•    attrib -s -h -r amvo*.*
•    del amvo*.*

Steps to fix the problem:

1.    Now open registry editor and navigate to the entry HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\Folders\Hidden\SHOWALL

2.    On the right side see the entry named “CheckedValue”, if the value is set to ‘0’ change it to ‘1’.

3.    The “DefaultValue” under the “CheckedValue” should be set to ‘2’.

4.    Click Refresh under the view tab and if the entries the same that we set just now that means the problem is solved.

30 Replies to “Fix the problem of Show hidden files and folders getting reset”

  1. The value has changed back to 0 on refresh & there is no amvo virus files found on my system.There is one more problem each time i double on a drive to open it, it will open in a new window, im sure this is worm which has got into my pc…but KIS 7.0 is unable to detect it. How fix to fix this ?

  2. There may be the virus (usually hidden), scan the system with a good and updated AV. Of course the best way to remove is Format.

  3. ei sir, good evening!

    right now im encountering a problem similar to this.
    the problem is that theres no amvo.* file to delete.

    i scanned with my AV and found a worm/autorun.eq located in a hidden folder.

    any other alternatives please, thanks.

  4. I tried to remove but didn’t get it but the fixing part worked really well thank you very much.

  5. thanx alot…
    i have this problem for about 3 years!!!
    and i thought its irreversible, its like a curse or something..
    thx alot

  6. i had the same problem as “Gautam” in the first msg..

    the value gets back to “0” on refresh.. and there no amvo files on the system..

    i formatted and re-installed the windowsXP and it is still persisting!

  7. please help can i reset all my hidden folders that it can be shown. my usb is affected with a virus that it hides all my folders

  8. Have this same issue, have checked the registry and all appears in order have scanned with just about every scanner I can find too no avail. Any other suggestions before I format this darn machine?


  9. thanks sooo much for showing how to remove a totally bugging me problem….no sign of the amvo thingy but the reg fixes did the trick.
    also showed me a thing or two in there i wanted to know….
    information is power!

  10. Just run this
    Contains the default values of most registry entries required to show hidden files
    In case this doesn’t work, you need to recognize the running virus processes which are continuously scanning and changing the keys
    An easy method is to make this into a batch file so that it can be carried around and run when needed

    reg add hklm\software\microsoft\windows NT\currentVersion\WinLogon /v Userinit /t reg_sz /d “c:\windows\system32\userinit.exe” /f

    reg add hklm\software\microsoft\windows\currentversion\explorer\advanced\folder\hidden\nohidden /v CheckedValue /t reg_dword /d 2 /f

    reg add hklm\software\microsoft\windows\currentversion\explorer\advanced\folder\hidden\showall /v CheckedValue /t reg_dword /d 1 /f

    reg add hklm\software\microsoft\windows\currentversion\explorer\advanced\folder\SuperHidden /v CheckedValue /t reg_dword /d 0 /f

    reg add hklm\software\microsoft\windows\currentversion\policies\explorer /v NoFolderOptions /t reg_dword /d 0 /f

    reg add hkcu\software\microsoft\windows\currentversion\policies\explorer /v NoFolderOptions /t reg_dword /d 0 /f

    reg add hkcu\software\microsoft\windows\currentversion\policies\system /v DisableRegistryTools /t reg_dword /d 0 /f

    reg add hkcu\software\microsoft\windows\currentversion\policies\system /v DisableCmd /t reg_dword /d 0 /f

    reg add hkcu\software\microsoft\windows\currentversion\policies\system /v DisableTaskMgr /t reg_dword /d 0 /f

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