shows bridge as up to date but it is not intalled and wont let me dowload it again.
You have to log in to Adobe.com Creative Cloud website (https://creative.adobe.com). Inhere is the option to find the download centre and from there you can download the applications again (also the option to change default version CC in CS6, mind you, Bridge CC is a separate download, Bridge CS6 is combined with the PSCS6 download itself.