Hi all,


I had for a long time Windows 7, but I also wanted Windows XP.
So I installed windows XP, unfortunately on the same partition.

When I turn my computer on, Windows XP will load and I don't have the option to select Windows 7.
Windows 7 is still on my computer, It's installed in the map "windows" and xp is installed in the map "XP'

How can I start up windows 7 again?

Thank you for your time.

Edit: im in the BOOT.ini and I see Windows XP only... But I think its possible to add windows 7 in it?
Added windows 7 to it... rebooted windows and i got the option to choose windows 7! But some files are damaged in system32 so windows 7 doesn't start up.Good evening marcieboy and Welcome 

OK a lot of the folks may tell you the same thing as I am putting in here.

If you want to multi-boot a PC always install the oldest OS to the Newest ONE

What I mean is (and this is from past experience) install XP then install W7 and if you want to install any Linux destro's then install them LAST because Linux has the better boot loader.   

But onto your question if I am understanding you correct it sounds like the boot.ini was over written by XP. You can try to play with the boot.ini. but things very well may never seem right afterwards.

I would say to save you a lot of headaches "backup and save all your important doc's etc" Format the harddrive / partition the harddrive then install XP first on one partition and then install W7 on the other partition and let W7 handle the boot loader.

Even if you can fix the boot.ini in W7 the PC will never seem to work correct afterwards and more than likely there will be issues down the road. 

Hopefully this helps you if you have any more questions please just come back to CH, MIKE    Windows Vista/7 don't use NTLDR to bootstrap the OS, and have SWITCHED to a newer "BOOTMGR" architecture.

BOOTMGR does not use Boot.ini.

The problem, of course, is that Vista/7's boot loader was replaced by XP's; XP doesn't know how to boot Vista/7.

You can use startup repair from the win7 disc to repair the MBR and bootmgr files, if you have one.