Q: help! i cant  install or remove windows 7!!!

ihad  a pervious 32 bit win7 system

however iwant to change to 64bit

butafter I erased thebootcamp this message keep showing up

idonknowwhats going on and what shouldido

cansomeone help please!!

hereismy commands

Last login: Sun Sep  4 00:39:54 on ttys000

diskutillist

/dev/disk0 (internal, physical):

   #:                       TYPE NAME                    SIZE       IDENTIFIER

   0:      GUID_partition_scheme                        *251.0 GB   disk0

   1:                        EFI EFI                     209.7 MB   disk0s1

   2:          Apple_CoreStorage Macintosh HD            56.1 GB    disk0s2

   3:                 Apple_Boot Recovery HD             650.0 MB   disk0s3

   4:                  Apple_HFS BOOTCAMP                193.9 GB   disk0s4

/dev/disk1 (internal, virtual):

   #:                       TYPE NAME                    SIZE       IDENTIFIER

   0:                  Apple_HFS Macintosh HD           +55.8 GB    disk1

                                 Logical Volume on disk0s2

                                 5D6419F2-5B49-4264-A443-3C649B01F734

                                 Unencrypted

/dev/disk2 (external, physical):

   #:                       TYPE NAME                    SIZE       IDENTIFIER

   0:     FDisk_partition_scheme                        *7.7 GB     disk2

   1:                 DOS_FAT_32 WININSTALL              7.7 GB     disk2s1

/dev/disk3 (disk image):

   #:                       TYPE NAME                    SIZE       IDENTIFIER

   0:                            Win7_SP1_x64           +4.0 GB     disk3

/dev/disk4 (disk image):

   #:                       TYPE NAME                    SIZE       IDENTIFIER

   0:                            GSP1RMCULXFRER_CN_DVD  +3.4 GB     disk4

diskutilcslist

CoreStoragelogical volume groups (1 found)

|

+-- Logical Volume Group 486FD1AD-9591-4BA7-81D1-12AA1EC14079

    =========================================================

    Name:         Macintosh HD

    Status:       Online

    Size:         56140439552 B (56.1 GB)

    Free Space:   18948096 B (18.9 MB)

    |

    +-< Physical Volume 974BC19A-6CA9-46A9-BA8C-E07DBA097CFB

    |   ----------------------------------------------------

    |   Index:    0

    |   Disk:     disk0s2

    |   Status:   Online

    |   Size:     56140439552 B (56.1 GB)

    |

    +-> Logical Volume Family 105F2856-5D57-4017-8F77-48E63EBE51F0

        ----------------------------------------------------------

        Encryption Type:         None

        |

        +-> Logical Volume 5D6419F2-5B49-4264-A443-3C649B01F734

            ---------------------------------------------------

            Disk:                  disk1

            Status:                Online

            Size (Total):          55769169920 B (55.8 GB)

            Revertible:            Yes (no decryption required)

            LV Name:               Macintosh HD

            Volume Name:           Macintosh HD

            Content Hint:          Apple_HFS

sudogpt-vv -r show /dev/disk0

Password:

Sorry, try again.

Password:

gptshow: /dev/disk0: mediasize=251000193024; sectorsize=512; blocks=490234752

gptshow: /dev/disk0: PMBR at sector 0

gptshow: /dev/disk0: Pri GPT at sector 1

gptshow: /dev/disk0: Sec GPT at sector 490234751

     start      size  index  contents

          0          1         PMBR

          1          1         Pri GPT header

          2         32         Pri GPT table

         34          6        

         40     409600      1  GPT part - C12A7328-F81F-11D2-BA4B-00A0C93EC93B

     409640  109649296      2  GPT part - 53746F72-6167-11AA-AA11-00306543ECAC

  110058936    1269536      3  GPT part - 426F6F74-0000-11AA-AA11-00306543ECAC

  111328472        808        

  111329280  378643288      4  GPT part - 48465300-0000-11AA-AA11-00306543ECAC

  489972568     262151        

  490234719         32         Sec GPT table

  490234751          1         Sec GPT header