Update refused without uninstall string

So you are running now the 32-bit build for version 1.28.2.6151 on windows 11 - which is the version that cannot be uninstalled

Was this install in the default location?
i.e. C:\Program Files (x86)\Plex\Plex Media Server

could you get me a file list of the folder into a text file and zip it and attach
e.g. in command window:
dir "c:\program files (x86)\Plex" /S > "%LocalAppData%\PMS_Installed_Files_2023-Dec-04.txt"
and zip the output file "%LocalAppData%\PMS_Installed_Files_2023-Dec-04.txt" and attach

So at the moment - when you go to “Add or Remove Programs” and search for Plex - you can see the installed 1.28.2.6151 version listed but on selecting the uninstall option - you get an error that C:\Program Files (x86)\Plex\Plex Media Server\Uninst00.exe does not exist ?

We can try to see if we can uninstall individual packages using the advanced steps at the tail end of this post [Windows] - Using the Microsoft Windows Troubleshooter FixIt for problems that block installing / removing Plex Media Server - General Discussions / Tips, Tricks & How-Tos - Plex Forum

Could you get me a list of the installed packages by running this command in an elevated command prompt window - ie cmd with right click “Run As Administrator”

wmic /output:"%localappdata%\wmic_product_list_2023-Dec-04.txt" product get Name, Version, IdentifyingNumber, InstallDate

The output file will be "%localappdata%\wmic_product_list_2023-Dec-04.txt" - please zip and attach

Could you also search the %TEMP% folder for all files with names having prefix Plex Media Serve and copy out and zip and also attach