About to delete volume. Says it's system but win7 on other boot drive.

As stated, you cannot recover the System MBR from C into N as long as it is a Logical Drive.

The solution is to boot free Partition Wizard bootable CD, right click on N to Modify>Covert to Primary partition, OK.

Then rightclick N to Modify>Set to Active, OK.

Now boot the WIn7 DVD Repair console or Repair CD, click through to Recovery Tools list to run Startup Repair up to 3 separate times with reboots to write the MBR to N now that it is Primary marked Active.
When it starts up, you can consider also using PW from boot to Move N into space you create by deleting C and Resizing I from the left, or first resizing N smaller. This will put your OS in the preferred lower address.

Always back up your files and a System Image before doing any resizing operations, although PW has not failed in hundreds of these we have helped with here. Even should it fail, it will restart and begin the attempt again but you can eventually bail out at startup timeout and WIn7 will start. This is another reason it is a superior Disk Manager.

There's a new tutorial at Seven Forums and it can be viewed at the link below.


Partition Wizard : Use the Bootable CD