@alacran 1) Yes, Wimboot doesn't work with esd files 2) Green is fully supported, Red means it will not work Yellow means it's not supported by Microsoft, but should work with WofADK and exclusion list of WimBootCompress.ini inside the Tools folder 3) If your Win8.1u1.wim is not located on NTFS drive wimboot is not possible. Compact is currently still red, cause I still want to check Win8.1 more, maybe there are conflicts with the older wof driver of it's own. 4) Win7 option will be yellow in next beta, forgot one check that exclude it.