Fail to boot in UEFI after installing in MBR

I just install windows 8 using BIOS , but now i want to change it to UEFI boot. so i followed steps below 1.create and format a new FAT32 partition K: 2.my windows8 is in I: so , i use this command bcdboot i:\windows /f all /s k: and succeeded. 3.i checked with the bootice about the BCD in my K: and found it indeed point to i:\windows\ just like the picture below...