There seems to be two issues here.
Please start Apache manually and let us know what error you get:
C:\Bitnami\wordpress-5.2.1-0\apache2\bin\httpd.exe -f C:\Bitnami\wordpress-5.2.1-0\apache2\conf\httpd.conf
We would recommend you to run the installer again, and once you see the error, DON'T stop the installer and instead manually execute the following commands and see what errors you get:
If you don't see anything strange, cancel and remove the files at the installation directory and run the installer with the following command:
C:\path\to\bitnami-wordpress-5.2.1-0-windows-x64-installer.exe --debugtrace debug.txt
In the current directory of the console (you can find it by running
pwd, it should be your home directory) a "debug.txt" file should be generated once the installer finish (with the error) and the window is closed. Note it may take a minute to be generated.