kdcom.dll is an essential operating system file that could habe become corrupted for a whole host of reasons. If the System Recovery option has failed (See Microsoft Technet social
to ensure you selected the correct recovery options - also look at the advice on how to Fix the MBR (Master boot record) in the thread).
If recovery still doesn't work you could always look into copying a non-corrupt kdcom.dll from a working machines to yours. There are various ways to do this, e.g. plug your hard drive into another computer. If all else fails take a copy of all your data from your Laptop (If you haven't already done so) and consider running a repair/re-install, or a clean install, of Windows 7.
Hope this helps. I'm sure if there are other things you can try first someone here will advise.
Edited by Orange Blossom, 19 May 2012 - 08:49 AM.
Removed unnecessary link. ~ OB