Does My PC Desktop, Laptop Run Sims 3? Does my PC desktop or laptop run Sims 3? Let's find out! For Windows XP users, goto: Start > Run > Type Dxdiag and Press Enter Click the save all information and upload that little text file to our forum. For Windows Vista users, goto: Window Button > Quick Search (Same as that search text area on it), type dxdiag. Click Save All information and upload that little text file to our forum. Then give us about 24 hours and our experts will examine the file and possibly make a few recommendations on how to run The Sims 3.