Hi there, ahmedibrahim. Allow me to share some details where you can get the validation code to install the QuickBooks Desktop program.

Since the version that you have is already outdated you'll need to contact our Customer Care Team during support hours. They can pull up your account and check if they can still provide you with the validation code specific to you.

Here's how to reach out to them: 

1. Open QuickBooks.
2. From the Help menu, select QuickBooks Desktop Help. 
3. Click the Contact us link.
4. On the new page, select a topic (such as activate or install QuickBooks). 
5. Scroll down and click the Have us call you button. 

For reference about contacting us, you can check this article: Contact QuickBooks Desktop support.

I've added an article you'll want to check for more details about the process: Activate QuickBooks Desktop for Windows.

Let us know how this goes so we can further assist you. Have a great day!