New
#11
Leave System Reserved alone. It needs no attention except to avoid messing with it. I don't now how it ended up in the middle of the drive, but it must have been moved there.
It doesn't have a drive letter so nothing can write to it, which is why you can't see it in Explorer.
As long as the flags are set correctly you should have no problems with the disk configuration. I would ask for help here before making any changes as we can give you the steps to avoid problems.
If it comes to that we can help you remove it and move the System boot files into WIn7 partition, but 100mb is hardly worth recovering unless there is another good reason.