Double click not working in blender 2.82

foe some reason simce upgrading to blender 2.82 double Left click doesn’t work in the file explorer or when renaming vertex groups and objects and i can not find a setting to enable it

First off how well does it work outside of Blender, in any other program?

It works just fine in Blender 2.8XX…so I will assume it is connected to your Mouse settings rather than in Blender…you can select the double -Click Speed in Blender here…
Mouse
If that doesn’t help then I would check your mouse settings… windows updated several times recently so that might have effected your driver…Hard to say…

thanks mate but resetting to defult settings seemed to fix it