chainloader bootmgr error 13

buna ziua am si eu o problema cu pc meu
cand deschid pc apare  un red screen cu diferite obtiuni :windows with slic loader (pointer) (default),windows whith slic loader (bootmgr),windows without loader,windows whith slic loader (use alternative method),widows whith slic loader (use low memory method),windows whith slic loader (full debug output),windows whith slic loader (more forceful-may crash),load externel menu(menu.lst),grup command line.Nu ma lasa nici sa formatez windowsul,chainloader/bootmgr error 13: invalid or unsupported executable format si apoi imi intra in red screen
am inceract cu  c-da F8 sa intre in safe mode si nu ma lasa
am incercat sa formatez din nou si tot asa nu ma lasa sa botez dupa cd
singura c-da pe care o pot face este asta :
background RRGGBB blocklist FILE
boot cat [--hex] [--skip=S] [--length=L] [-
cdrom --add-io-ports=P | --init |st chainloader [--force] [
clear color NORMAL [HIGHLIGHT]
commandline configfile FILE
default [NUM | ‘saved’ | FILE] displayapm
displaymem fallback NUM…
find [--set-root] [--ignore-floppies] foreground RRGGBB
geometry DRIVE [CYLINDER HEAD SECTOR [ halt [--no-apm]
help [--all] [PATTERN …] hide [PARTITION]
initrd FILE [ARG …] kernel [--no-mem-option] [--type=TYPE]
makeactive map [--status] [--mem[=RESERV]] [--hoo
md5crypt module FILE [ARG …]
modulenounzip FILE [ARG …] pager [FLAG]
partnew PART TYPE START LEN parttype PART TYPE
quit [--disable-a20] reboot
root [DEVICE [HDBIAS]] rootnoverify [DEVICE [HDBIAS]]
serial [--unit=UNIT] [--port=PORT] [-- setkey [TO_KEY FROM_KEY]
setup [--prefix=DIR] [--stage2=STAGE2_ setvbe MODE_3D
splashimage FILE terminal [--dumb] [--no-echo] [--no-ed
terminfo [--name=NAME –cursor-address testvbe MODE
unhide [PARTITION] uppermem BYTES
vbeprobe [MODE]

unele comenzi merg altele nu
va rog sa ma ajutati si pe mine exista vreo posibilitate de rezolvare

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