I run win 7, i recently connected three seagate external hdd to it and was copying some data, unfortunately one of them disconnected and they system hung up, i took out the battery and tried to boot up the laptop again, but it never did. it just shows the thinkpad splash screen and then the cursor starts blinking and then it tries to boot from the start again. I can however access the disks via an ubuntu live CD. I also tried pressing f8 to reach the startup repair menu, but I cannot get to that screen. Is there a way I can fix this problem without formatting the system as i do not possess the win 7 disk?
Your problem seems that you have lost or broken the MBR,
I'll leave a links to help with this.
For getting a win7 repair disc, and can follow these simple steps:
If you want to operate from ubuntu could follow these steps: