The Issue about install device driver

Question

Create a program that can install a driver of device.

following are testing steps:

1. Open device manager and then uninstall Realtek(R) Audio driver.
2. Running test program, it return failed when install driver.
3. I retry above step1, and manual click the Scan For Hardware Changes.
4. Running my test program， it return succ.

Based on the above test analysis， i have enhance my test program.

Before execuate insatll , program call the CM_Locate_DevNode and CM_reenumrate_DevNode functions.
Then, execuate install process. However, the result was not what I expected and still failed.

Can you give me some advice?

Answer 1

You will get clues here:

SetupAPI Device Installation Log Entries