Hello @Iku Iwasa,
Welcome to Microsoft Q&A forum.
No recommended solutions for uninstalling a file that was configured as "Permanent" once.
As this old document: Permanent Property says:
The expected behavior is that uninstalling an application should remove everything that was installed by the application.
Make sure that you have a good reason before settings the Permanent property to True.
Normally it’s not suggested to modify the Registry keys, in case you set wrongly for the Permanent
option and installed the application, you may have to modify the Registry keys. Backing up the Registry before modifying it is recommended.
BTW, I helped to add the Windows
tag, perhaps, some tools from Windows can better uninstall it and avoid modifying the Registry.
Have a nice day.
Best Regards,
Tianyu
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