Files Get Saved In The Wrong Library When Dual Booting

So I have both Windows 7 and 8 on my machine and am currently primarily using 8. I save all of my work and files to my 8 partition C: whenever I choose the location, but for applications/programs that automatically save to a library and where I can't choose the location, those programs always save it to my Windows 7 partition E:.

For example, using Windows key + PrtSc takes a screenshot of your screen and saves it to your pictures library. However, the picture gets saved to E:Users[username]Pictures instead of C:Users[username]Pictures. I guess it thinks my main library is still on the 7 partition instead of the 8 partition. The same things happens with games that I play where the save files are automatically saved in the My Games folder in My Documents. The save files are saved in the E: partition documents library instead of C: partition documents library.

Basically, I don't know where I'd go or what setting I'd change to fix this behavior. My default OS is set to Windows 8 in msconfig and all of my games are installed on my C drive, so I don't know why they would save to my E drive. Since the screenshot command uses the same behavior, I'm guessing there's a setting somewhere that's making my Windows 7 library the default.