BOOTMGR is missing

[pabs2064]

hi when i startup my computer it shows BOOTMGR missing, press alt ctrl del to restart. i dont have any cd/dvd, how to resolve this problem any idea? Thanks

 

[wanamingo]

http://pcsupport.about.com/od/findbyerrormessage/a/bootmgr-is-missing.htm

Check out here, also is there a usb drive or CD/DVD in the tray?