New
#51
Did you boot the Win7 DVD, select Repair My Computer on second screen, then see if it finds an installation to repair, or offers up a repair?
If that repair doesn't work, then boot back in to Repair and click through to Recovery Tools list to run Startup Repair repeatedly with reboots to attempt to repair or rewrite the MBR to Win7 System Reserved boot partition which holds the active MBR.
If this will not start Win7, then I have one more suggestion:. Since the MBR appears to be corrupted by GRUB, and is isolated on the 100mb System Reserved partition, then you can boot the PW CD, right click 100mb partition, select Wipe Partition for deepest possible clean., OK.
You can also then rightclick>Resize Win7 into that 100mb space, sliding the left Win7 border all the way to the left, OK.
Next rightclick Win7 to Modify>Mark Active, OK, Apply all steps.
Now rewrite the MBR into Win7 without any GRUB corruption. Boot Win7 DVD, select Repair, click through to Recovery Tools list to run Startup Repair up to 3 separate times with reboots to write MBR to Win7.