Cant make partition on my C drive to dule boot windows 10

[Matt Novis]

So I have a 128gb 840 evo ssd as my C drive and then a WD caviar Blue as a mass storage drive . So with windows 10 just coming out and it being free I thought I would duel boot it with windows 7(currently running) and went and cleared out a bunch of old games and programs and ended up the 47 gb free so I would have space to make a partition and have a little room after that. then once I tried to shrink the volume it says the maximum i can shrink it is 129mb. so I tried on my HDD and it worked just fine being able to shrink it 600GB(the remaining storage).

System Specs
i5 4570k
EVGA GTX 760
128gb 840evo ssd
1tb WD Caviar Blue
EVGA supernova G2 750 watt
16gb corsair vengeance 1600 ddr3

 

[Someone Somewhere]

Windows 10 is not free. It is a free upgrade. That means that you can either use Windows 7 or Windows 10, but not both (unless you have multiple licenses, of course).

To install 10 you will have to overwrite 7.

 

[Matt Novis]

so if I bought another license from windows 7 would it still be possible to duel boot and I still have the problem of the VERY limited partition size that I can make which is still my primary concern.

 

[Someone Somewhere]

If you bought another Windows 7 license, you could dual boot. Don't know why you'd want to, though. You can buy a Windows 10 license straight from Microsoft that means you don't need to install 7 then install 10 over the top.

Microsoft's tools are very focused on keeping your data safe, and don't like to do things that could potentially endanger it. You generally need to use a third-party tool to shrink partitions, because the data is spread out along the partition rather than right at the beginning, so some needs to be moved.

GParted is my advice: http://gparted.org/download.php