Is there any setting to disable this dropdown while typing in search textbox?
How to disable dropdown with properties
Re: How to disable dropdown with properties
It looks like you enabled a Filter -- "Most". Try changing it to the "Everything" Filter.
Also: disable Always show search suggestions under Menu => Tools => Options => History.
Also: disable Always show search suggestions under Menu => Tools => Options => History.
Re: How to disable dropdown with properties
Everything 1.5.0.1384a will no longer suggest search functions in your search history.