Yes, it is possible to safely remove the files generated by portable applications in the "roaming" directory. Since portable applications do not make changes to the system registry or other parts of the operating system, it is safe to delete the associated files in the "roaming" directory as long as you are confident that the files are not being used by the applications.
waterproofing services in philadelphia pennsylvaniaHowever, it's important to keep in mind that these files may contain important data, such as settings, preferences, or saved files, for the portable applications. Before removing the files, you should make a backup of the data if you want to keep it, or ensure that the data is not needed for the proper functioning of the applications.