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#21
I've never heard of the booted DVD connecting to MS to complete any kind of repairs in the Repair console.
Are you sure you are booting the Win7 DVD, choosing Repair My computer on second screen, then clicking through to Recovery Tools list to choose Startup Repair at least three separate times with reboots? https://www.sevenforums.com/tutorials/681-startup-repair.html?ltr=S
If Partition Wizard shows Win7 is marked active when it wasn't before it may mean Startup Repair was on path to fixing the MBR but you didn't go back for enough repeat fixes so that it could finish the job.