PlayerPrefs wont save info

Hey guys I'm currently working on a decent sized game with my fellow co-worker (In a small independant game companay). For now we are using PlayerPrefs rather then a database, as I usually do. But Just about an hour ago, no more information will be saved. I can still load all the old info saved on each playerpref, but no longer assign new data to them. I've searched around for something similar for anyone and I couldn't find anything. I thought if I cleared my PlayerPrefs folder it may work, but I cant find the folder and the small editor script I made wont work.

class ClearMyPrefs extends EditorWindow { private var Sceen:int=1;

 @MenuItem ("Windows/ClearPrefs")
 static function Init () {
     var window = EditorWindow.GetWindow(ClearMyPrefs);
 }

 function OnGUI () {
     if(Sceen==1){
         GUILayout.Space(20);
         if(GUILayout.Button("Delete All Prefs")){
             Sceen=2;
         }
     } else {
         GUILayout.Space(20);
         GUILayout.Label("Are you sure?");
         GUILayout.BeginHorizontal();
         if(GUILayout.Button("Yes")){
             PlayerPrefs.DeleteAll();
             Sceen=1;
         } 
         if(GUILayout.Button("No")){
             Sceen=1;
         }
         GUILayout.EndHorizontal();
     }
 }

}

If someone could help me figure out why they wont save and why I cant clear my folder it'd be much appreciated, thank you.

Extra Detail: I have my computer split into 2 drive, C:\ and E:\, I have Unity saved in the E:\ incase C:\ crashes.