I'm trying to install oracle 19c but it's stuck at 52% for over 7 hours. So cancelled it and uninstalled it. I have started installing again but still stuck at 52% that is in creating and starting oracle instance. 
Oracle 19c installation stuck at creating and starting oracle instance
oracle-19c
Related Solutions
Just install the DB software then use DBCA to create the database. There you can choose the national characterset.
Typically noone uses the installer to create a database. Some others (including me) avoid even DBCA.
Oracle Net configuration looks OK: local_listener looks OK. We should see the instance registered with the listener: doublecheck that local_listener parameter is the one used by database instance with show parameter local_listener. Are you sure that database instance is not using SPFILE and if yes, the displayed PFILE is the right one ?
What is missing in the database configuration is service_name: that does not explain why the instance is not registered but you need to fix this if you have in tnsnames.ora.
PS: check also that all hostnames used in any Oracle Net files are also defined in /etc/hosts or in DNS.
Best Answer
Two of the most common reasons for the Oracle DB installation to get stuck at this point are:
%TEMP%directory (usually as a result of AD domain policies or a full disk)If you need to cancel the installation and try again, be sure to confirm that the
%TEMP%directory on your Windows box does not have any leftover directories prefixed withdeinstall,OraInstallorCVU, as these may be reused by future installations, creating a different set of issues.