I installed Ubuntu 10.10 and chose the option of installation "alongside windows". Then I chose a drive where Windows 7, 64 bit was already installed. This drive had a capacity of 150GB. Ubuntu divided it into 100+50. I went along with that and installed Ubuntu 10.10 successfully. While booting windows 7 loader shows in the boot screen, but it does not boot after selecting the option and pressing enter. No error message is given, the screen just gets black and goes back to the operating system choice menu. Now i upgraded Ubuntu to 11.04.
I have Windows 7, 64 bit and Wiindows 7, 32 bit in two separate drives of mine. Windows 7, 64 bit is on the primary partition, while the 32 bit version is installed on an extended partition. I want to keep all the three operating systems. Please suggest me the best way to keep tem. I have already tried Windows 7's start up repair. But no gain. I also rebuild boot using testdisk.