The last time a made a format to my hard drive, I splited my drive in half. One half(100GB) was for windows and some basic programms and the other half(900GB) was for files and my programms. I want to make a format again and if I do my PC won't be able to see the programms I have on the second half. For example, when I hit right click on an image and I go to "open with" it shows photoshop. After the format it doesn't show it. My PC cannot see those programms cause it thinks that they were never installed(it's only natural). Is there a way to make him see them again as if I had re-installed them?