I had a 500gb disk split into a couple of partitions a small system partition, then approx. 220gb for window vista (original when purchased) and a windows 7 (later added).
I recently purchased windows 8 and installed this to the vista partition, I formatted the partition during the install process.
I wanted to keep my windows 7 and 8 with the OS selection when booting, but now when I boot it goes straight to windows.
I have gone into the startup & recovery setting section under the advanced tab of the computer properties window, but while it says to display the list for 30 secs, when I try the dropdown box for a default OS there is only the windows 8 showing. Does this mean that my windows 7 is gone?
When I look at the partition that it was on (shown as a separate drive under win8), it would appear that everything is still there.
Stick your Windows 7 dvd into drive and reboot computer from cd drive
When it brings up the options click "Repair and Restart". Done!
I originally ran XP and then I bought a 2nd HDD and installed Windows 7 on it and it automatically set up a dual boot. I replaced the XP HDD with a new one and installed Window8 on it and I expected to again have a dual boot setup. Nope.
I took nhorton79's suggestion and booted up the Windows 7 CD and ran repair. It found the Windows 7. The first time I booted into Windows 7 CHKDSK started and it went through both drives. I was in a panic that I had destroyed my Windows 7 but it all came out OK.
The dual boot is slower than the one I had previously but I am a happy camper now.