ERROR code 1605 AP installation
Here are some reference solution:
https://wikifixes.com/errors/b/0x/windows%20installer%20error%201605/
Safe way to repair the error:
1. Click here to download the error repair application
https://tweakbit.com/pc-repair-kit/download/windows%20installer%20error%201605?_tdsurl...085.1556587862
2. Install and launch the application
3. Click the Scan Now button to detect error causes
4. Click the Repair All button to fix the error
The same application can be used to run preventative measures to reduce the chance of this or other system errors appearing in the future.