George Karnos
Ansys Employee

Can you check the following file:
C:\Program Files\ANSYS Inc\install.log

Does it contain any errors for the 2024 R2 installation?

Also, try the following:
Run:

Start->Programs->Ansys 2024 R2-> Product & CAD Configuration 2024 R2 (Right-click and choose Run as Administrator)

Choose Unconfigure Products and CADs
Select All.

When Finished, then choose:
Configure Products and CADs
Select all

After that is finished, check to see if Fluent is listed.