It's too soon to be dropping Linux---you have to use it at least one year before going back to Windows.
<<Oh--maybe that was not the answer you were looking for......

>>
My first reaction is WHY? All you have to do it boot up the Windows CD--rescue mode--and run "fixmbr" to restore the Windows loader.
Quote:
it is not possible for my system to get windows boot loader
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Why?
To use GRUB, there must be a partition which contains the config file. If that's where your grub directory is, then everything should work fine.