partition not available after resize using gparted. how to recover it?

I ran into a problem with my HDD.

I tried to make some space for my linux partition using gparted and I resized one of my NTFS partitions. Unfortunately, the operation didn't succeed and my partition is now inaccessible (when I try to open it from windows I get that popup menu that tells me that's not formatted).

Is there any way I can recover my partition and its data ?

I searched for this problem and found that testdisk might be a solution for this, but I don't know how to use it. After I analyzed the hard drive using this application, it says that the partition has some errors (Invalid NTFS or EXFAT boot or something like that) but then I'm stucked.

I solved the problem.

I used ntfsfix in ubuntu to fix the partition and then chkdsk in windows and my partition is back.