To have Advanced Options checked by default, run this script. Works
for both Classic and New. For Classic, Alt-O can be used as a toggle.
Set "Search" Advanced Options as Default (Line 151)
http://www.kellys-korner-xp.com/xp_tweaks.htm
Set All Search Options to Active (Line 148)
http://www.kellys-korner-xp.com/xp_tweaks.htm
Change Default Search Options
Start/Run/Regedit
HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\ Explorer
Data Type: REG_DWORD (DWORD Value), Value Data: (0 = unselected, 1 =
selected).
Modify the following values, setting them to "1" to select the
parameter as a default or "0" as unselected. CaseSensitive,
IncludeSubFolders, SearchHidden, SearchSlowFiles, SearchSystemDirs.
Restart or logoff Windows for the change to take effect.