That is clean so far, very good.
This entry
Registry Data Items Infected:
HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\Start_ShowSearch (PUM.Hijack.StartMenu) -> Bad: (0) Good: (1) -> No action taken
in the log refers to a PUM = potentially unwanted modification. This may have been done deliberately by the user or by some software and need not be bad.
This particular entry hides the search in the Windows start-menu.
You can delete it with MBAM if you wish or you can leave it this way, it is a harmless entry.
If you haven't missed that start-menu entry until now - just leave it.
For further advice please wait for essexboy to look at your OTS-log.
Cheers
Zyndstoff