MS Office

I have a computer with MS Office installed on it. It was working just fine up untill 2 weeks ago. The problem now is that Excel works fine but if you try to open a attachment thru outlook it wont open in word. And if you try to open any word documnet it wont open, if you open a documnet thru word it will open but wont let you click anywhere on the entire documnet. I have tried uninstalling and reinstalling but no help. Does someone knows why office is acting like this please? Thx