When you use Windows Explorer or My Computer to right-click a folder and press Properties, on an NTFS volume, the Security tab and/or other tabs are missing?

If you uninstalled a 3rd party application which modified the registry so it could modify the right-click context menu, it may have failed to restore the original keys and Value Names.

To restore the original information:

1. Copy / Paste the following to a Folder_Context.reg file:

REGEDIT4

\[HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\\{1F2E5C40-9550-11CE-99D2-00AA006E086C\}\]
@="Security Shell Extension"

\[HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\\{1F2E5C40-9550-11CE-99D2-00AA006E086C\}\InProcServer32\]
@="rshx32.dll"
"ThreadingModel"="Apartment"

\[HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Directory\shellex\PropertySheetHandlers\\{1F2E5C40-9550-11CE-99D2-00AA006E086C\}\]

2. Merge the Folder_Context.reg file with your registry, or run regedit /s Folder_Context.reg