Ok, the workaround to remove the MS security update stopped working.
After scouring the internet for more solutions, i ended up asking ChatGBT and one of its suggestions worked. Again I guess its a workaround but it will do.
Its to run the following command in powershell to unblock files in my installation folder where i am running setup.exe
Get-ChildItem -Recurse "C:\path\to\folder" | Unblock-File