Terminate idriver.exe and msiexec.exe Processes
1. Click 'Start,' type 'taskmgr' in the Search box and then press 'Enter.'
2. Click the 'Processes' tab on the Windows Task Manager dialog box that opens.

3. Click 'idriver.exe' in the 'Image Name' column and then click the 'End Process' button.
4. Click 'End Process' in the confirmation dialog box that opens.
5. Click 'msiexec.exe' in the 'Image Name' column, click 'End Process' and then click 'End Process' in the confirmation dialog box.
Create a New Windows Account
6. Click 'Start,' type 'Add or remove user accounts' in the Search box and then press 'Enter.'
7. Click 'Create a new account' in the Manage Accounts window that opens.
8. Type a name for the account that you are creating in the 'New account name' box.
9. Click the 'Administrator' radio button and then click 'Create Account.'
10. Click 'Start,' click the rightward pointing arrow next to the 'Shut Down' button and then select 'Log off.'
11. Log into your computer using the new account that you created and then install the game.