My Internet Option's Advanced' and 'Security' tab were gone.
I took a look at the registry, and found following 3 entries.
Key : HKCU \Software \Policies \Microsoft \Internet Explorer \Control Panel
( Default ) REG_SZ ( No Value )
Advanced Tab REG_SZ 1
Securiyt Tab REG_SZ 1
I changed the value to 0, but it did not work. So, I created two entries.
Before creating, I changed existing item's names to something like these.
Advanced Tab --> Advanced Tab 2
Securiyt Tab --> Security Tab 2
Then, I created an entry for 'Advanced Tab' as follows:
Edit - Create New - DWORD Value
Change the new entry's name to 'Advanced Tab'.
( Same way for 'Security' Tab )
Now you see 'Advanced' ( and/or 'Security' ) Tab there.