how can I get rid of unwanted ribbon panels

[Anonymous]

With my New Revit installation I got unwanted ribbon panels.

see attached image. How can I delete the one which I dont want ?

I cant see them in control panel

[múinteoir]

These look like 3rd party add-ons that are not standard in the default install. I would check add/remove programs to remove the add-ons you do not require.

[M.elmekawy]

They are  add-ons that are not standard in the default install.

you can remove them through uninstallation

go to control panel ...  add/remove programs to remove the add-ons you do not need