I use Chrome by typing directly into the URL text box to search for things. I program in C# and one day I made the awful mistake of pressing / instead of shift and the search became “C/#.” From that day on out most of my searches are “C/# blah blah blah’ which is invalid because of the / so I have to go back and edit it.
This cannot be removed by doing shift+delete for some reason, unlike many other auto completed URLs. The icon for it is different as well. It looks like a new file icon.
I am using Windows. I do not want to remove all of my history.