For 1st scenario, In installation wizard, although a pop up appears to display installation is completed. But in the wizard, it would show files or folders that are missing or not able to find in the unzip folder of PRPC installation kit in install tab of the wizard. In my case, wizard had displayed Pega GUI was not in the directory path which we can get it in the zip file and place the file or folder in the directory path that is shown in the wizard. After that uninstall PRPC from the system and re-install the same again.
Lochan | Community Moderator | Pegasystems Inc.