Download the Setup file to your desktop.
- Right-click the application’s Setup file, and then click Properties.
![](/images/ACACS5/InstACACS5_1.png)
- In the Properties dialog box, click the Compatibility tab.
![](/images/ACACS5/InstACACS5_2.png)
- To apply the setting to the currently logged-on user, select the Run This Program As An Administrator check box, and then click OK.
- Double click on Setup file to start the installation process.
- In the User Account Control Window, click Yes.
![](/images/ACACS5/InstACACS5_3.png)
- Follow the prompts to complete the installation process.
- Once the installation is complete, restart your computer.
![](/images/acacs5/InstACACS5_4.png)
- Finally, you can launch the TPrep for ACA CS5.
![](/images/acacs5/InstACACS5_5.png)