Hi Ashima,
Can you please provide the error and document you are referencing? Maybe there is a better solution than uninstalling.
If you uninstall the data will not be lost as it is kept in the TDM Repository.
You may lose some Portal configurations.
Profiles are kept in the temp area for the user. If the installer writes the file, like the application.properties file, then it will uninstall too. However, if the program generates that profile, then it will be left. Since we can upgrade and those files are preserved, that would indicate that the uninstall should leave those behind.
The best way to move forward would be to create a backup folder of all your Portal files and then delete once the fresh install is verified to work.
Best regards,
Taylor
dovle01