Hello KHInsider Forum Members! Please hide all spoilers and discussion for Final Fantasy VII Remake in a spoiler tag, keep all titles spoiler-free, and do not share any videos/streams/images prior to April 9th 9pm Pacific Time. Anybody who fails to comply will be banned immediately for a week.
When is the last time you ran Windows Update? I know they occasionally update Windows Installer so you can try checking if you have the most recent version, though since you said you uninstalled and reinstalled it, that isn't likely the problem.