Greetings. I had no problem doing this with JTAG X360s, now the slim 360 I am having an issue. I downloaded the hdd compat fixer and ran it thru XEX MENU put it in my SlimMU the 5 gig enternal and tried USB0 my 2 tb hdd and USB1 the usb stick 15 gigs but is almost full about 200 mb left. I get the error below and I am wondering if anyone can tell me how to fix this or do i just need to buy a freakin internal 500 gig drive for slim for anything xbox1 or emulators to work? my error is: The Create File is Error 2: Device Does not Exist or does not have a sector size compatible with 4k buffers. Is this error because of only 300 mb or so left on usb1 my stick which has content files of gta5 and battlefield 4 so its almost full? or usb0 over 200 gigs left of the 2tb drive or the SlimMu only being a 5 gig internal. Can someone help me I can play some emulators like s360 but not intellivision or atari emulator or sega This worked fine in non slims but now need to get that HDD1 HDDX showing and yes i enabled it in advanced settings. thanks for the support