here is the method to install easybcd 2.1.2 in windows 8.
1. mount win8 iso. for example, mount as d:
2. install .net fix. Search "cmd", and right click to do "Run as administrator".
3. in the cmd, type
dism.exe /online /enable-feature /featurename:NetFX3 /Source:d:\sources\sxs
4. run EasyBCD installer
5. you are ready to use easybcd