Laptop #1..... 32-bit. Win 8.1 Pro dual boot with Win 10 TP Laptop #2..... 64-bit. Win 7 dual boot with Win 10 TP There is something inherently wrong with the Win 10 TP iso non-Enterprise copies. Both 32-bit and 64-bit copies. In both copies ( 32 and 64 bit ), sfc found corrupt files but unable to repair. Dism did the repair successfully, but running sfc again will return the same result..... found corrupt files but unable to do repair. ( see screenshot ) Running sfc on Win 8.1 Pro and Win 7 returned result of..... no integrity violation. It seems apparent that the Win 10 iso files contain something that causes negative result in system file check. Will someone with Win 10 dual boot setup please do the same experiment and see if our findings match ?