Check boxed should be like this

wouldn't be better if NSIS uses the native chech boxes instead of the bitmaped check boxes

Maybe, but only new versions of COMCTL32.dll support TVS_CHECKBOXES and even then, you can't have them simply disabled for partially-selected section groups or read-only sections.

hmm... So thats whey NSIS doesn't have the native chech box. thanks for the clearification.

It a shame that native check boxes aren't possible.

I just thought that making them native will make them cooler (you know, when using them with Win XP and the next Vista)

Is there any workaround for this? please say yes 🙁

The simplest workaround is to use a custom page. A better but much more complicated solution would be creating a custom control or drawing the treeview manually for the components page.