if you are on 4 use this guide : Wiiso
It works with 4.1 as well.. I run HBC on 4.1. Also note that upgrading to 4 is not going to remove the HBC channel or any others. You need to first remove them with anytitle deleter. Also note that you do the update last after you have removed everything.
System symptoms of GPU artifacting.
Anyway the same way Bootmii/boot2, HBC and DVDX were installed they can be uninstalled. Those options are given during the installation process. Just keep all your Brew applications on SD and do the same for any unofficial channels. You'll have to re-install those anyway if you get a replacement system. Then if you don't have the new official update 4.1 get it if you dont want to format your system memory and want to keep all your playstats etc. They might send you a replacement system. Thats what they did for me earlier this month for the same problem.
This is almost like you're preparing your Wii for a piss test. *L*
Ok, so if i use that appliction (i cant remember its name) which i installed HBC and bootmii from, i can uninstall it. And after there will be no traces of softmoding my wii. Am i getting this straight? Also i installed a couple of cios and stuff , should i get rid of this stuff. And if i should is it possible for me to uninstall them through ATD. Do u have a list of stuff that should not be in my system that nintendo can detect?