Dell Inspiron3521 7Beeps Codes Diagnostic Solution

If the following pop up dialog appears on your Pc screen every time you turn on your Pc or restarting.

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This massage is caused by verecno Worm
Also this can come together with the following #Worm
The verecno worm drops the following files:

    C:\Google\Autoit3.exe
    C:\Google\Google.lnk
    C:\Google\Windowsupdate.lnk
    C:\Google\GoogleUpdate.lnk
    C:\Google\GoogleUpdate.a3x
    %User Startup%\GoogleUpdate.lnk
    %User Startup%\GoogleUpdate.a3x
    %User Startup%\WindowsUpdate.lnk
    {removable drive letter}:\Hot.lnk
    {removable "}:\Movies.lnk
    {removable "}:\My Games.lnk
    {removable "}:\My Pictuers.lnk
    {removable "}:\My Videos.lnk

Follow below steps to get rid of this error

1. Press Win+r, 
2. type regedit and enter.
3. Now press ctrl+f,
4. type googleupdate.lnk and hit find.  

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Windows registry search and show detect entries under 

    HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run
    and
    HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Run
   

 path just delete it and hit find to found next.

  Do the same with autoit3.exe, windowsupdate.lnk, googleupdate.a3 and others!!