Resolved Boot Configuration corrupted after Windows Update

The PC was installed with Windows 7 Home Premium 64-bit but had been idle for 2 months. Turning it on again the first time up to the User Log-in screen, a message box popped up saying "Windows is being updated..." Then it automatically shut down and rebooted again looking normal. Then it did the same thing two more times.

After the third time reboot. The screen turned black and hanged there. I manually rebooted it. Then a message window said that reboot was failure and the repair attempt was then started, and then told me that repair was failed.

I booted up the PC from the Windows 7 DVD and attempted to repair but failed again. I took out the SATA harddisk (still new, only 6 months old) and use a harddisk dock to connect to another PC via USB. I was then told the HD had some problems, and I clicked the option to scan and recover. It was done perfectly. I put the HD back to the original PC and it still couldn't boot up. This time, I looked at the boot log and it said "Boot Configuration is Corrupt. Repair Action: Partition table repair. Result: Failed. Error Code: )x490. "

Any hints what's happened?

 

It works great! Thank you.