,
- Did you make any changes on the computer prior to the issue?
- Do you receive any error message on the computer when you try to install the game on the computer?
- Are you able to install other programs on the computer without any issue?
**Method 1:**You may perform a clean boot and then try to install the game and check if it helps:
How to troubleshoot a problem by performing a clean boot in Windows Vista or in Windows 7
http://support.microsoft.com/kb/929135
Note: After troubleshooting, make sure to put the computer to start as usual as mentioned in Step 7 in the above Knowledge Base article.
**Method 2:**You may also check the version of DirectX installed on your computer and Video card . Here is the below link which will help you to check the version of Direct X.
http://windows.microsoft.com/en-us/windows7/DirectX-frequently-asked-questions
Also refer the download and install the Direct X on the computer with the help of the link:
http://www.microsoft.com/download/en/details.aspx?id=35
If the issue still persists then you may also post the query in the Sim 3 forum link provided for better assistance.