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Windows 10 update corrupted dual boot options
When I first installed the Win 10 Preview, it set up a dual boot (actually triple boot, 3 OS's - Win 7, Win 8.1 and Win 10). One of the Win 10 updates corrupted it. I've tried to fix it by booting with all 3 OS install discs and running "bootrec.exe".
Bootrec.exe /rebuildbcd returns "Total identified windows installations 0"
Bootrec.exe/scanos lists all 3 OS'
Originally, I had a dual boot with Win 7/Win 8.1 until I installed the Win 10 Preview.
I no longer get boot options. On a power on or restart it will either boot directly to Win 10 Preview or to Win 7. I have to enter the BIOS and select which OS I want.
Jack