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#11
I would wait for external CD drive to run Repairs first.
Run at least 3 Startup Repairs after confirming Win7 partition or its SysReserved partition (preferred) are set Active: Partition - Mark as Active (Method Two)
Startup Repair - Run 3 Separate Times
If this fails you can copy out your files using Repair CD: Copy & Paste - in Windows Recovery Console
Then run Factory Recovery from its partition at boot by tapping the Asus F9 key, once you've disabled Boot Booster in BIOS. Or boot the Win7 DVD and follow these steps for Reinstalling Windows 7