I have installed C: XP windows and F: win 7 ............... after installing XP on win 7 (C: win 7 before , after installation auto changed to F: win7 and C: XP) ... now i cant see the boot options for which OS i shd go... it directly goes to XP OS ... i tried EasyBCD ... not working ... Can any1 hepl me ??
If Windows will still boot, and before we make any specific recommendations will you please post a snip/screen-shot of the entire disk management drive map with a full description as to which drive/partition is which, so we can see what you have going on as there may be a fairly simple way to resolve the situation.
In the Windows start menu right click computer and click manage, in the left pane of the "Computer Management" window that opens click disk management and post a snip of that.
Following this tutorial at the link below, starting at Option One to mark the Windows 7 partition as active and running the startup repairs will add the dual boot option back at system startup and be sure to post back with any further questions you may have and to keep us informed.
If Windows won't start at all see Option Two to see how to mark Windows 7 partition active.