To check that, open your Windows Explorer, press ALT+T key combination and then choose “Folder options…”. This one is easy, sometimes you or someone else has accidentally triggered incorrect setting in Folder Options. We identified three possible causes of this scenario and each case needs a separate way to be resolved: 1. Today we will tell you how to have Windows Explorer navigation work in single window. This is very annoying in case not expected. Sometimes it happens that Windows Explorer starts to open in new window every time you try to navigate between your disks and folders.