Error Message - The Operating System is presently not configured to run this application
I just recently bought Dell XPS 8900 with Windows 10 installed. I installed couple of applications including Security software, MS Office 2016, Adobe Light Room. The computer came with a solid state drive configured as Drive C. When I first installed software it automatically installed on the solid state drive which quickly filled up. Then I was told to install the Office-365 on the Hard Drive configured as Drive I. So I uninstalled Office, and reinstalled it on Drive I. Somewhere along this, I started getting this error message "The Operating System is presently not configured to run this application". Also, it seems that the performance of brand new computer has slowed down a bit. What is going on? What did I do wrong? Can you please help fixing this?