hi guy's thanks for the replies, i format my drive c: already

but my partition still have a virus so i manualy delete the virus:
heres the procedure from my friend

1. Open "Run"
2. Type regedit
3. Locate "HKEY_CURRENT_USER\Software\Microsoft\Windows\ Curr entVersion\Explorer\MountPoints2"
4. Delete all instance(s) of infected drive(s) by looking each Key/Folder. (Infected means sub-key with weird characters same.)
5. Open Windows Explorer > Show hidden files including system files.
6. Delete all instances of autorun
i removed thid file name < d.com > now its works fine

i will attach that file later here