I think I have been doing what you suggested in the last few hours - deleting anything associated with EA - but will look through your ideas in detail..
I had previously looked the registry manually (after using CCLeaner) to delete any EA / Origins entries. This time I downloaded Revo Uninstaller after efforts to delete the Origin app using "Windows Installed Apps" uninstall.
I then proceeded to delete all EA / Origin games using Revo Uninstaller. It took 3 passes in some cases. And then I used CCleaner's registry cleaner. And then disabled all non-Microsft services and all Start-up applicatiions to enable a clean boot. And then tried to install the EA app but still no success.
Will go through your post carefullly though.
Again thank you for your posts.
So last night I put the computer that won't load the EA app into safe mode with networking and connected it to the internet via a cable .....
and the installation got past the 4C-6356 error message - still failed later but it progressed.
So a clean boot - all services except Microsoft ones + no start up services launched gave the error but safe mode does not.
Anyway to finish the install attempt stopped with an INST-14-1601 error. This happened because I was in safe mode and I fixed by enabling the Windows service required. Initially with some commands in Powershell but on later attempts I either deleted and reinstalled the 2015-2022 Visual C++ files and (I think) a repair worked as well. (Open Apps installed, click modify, then click Repair).
This allowed the installation to continue but it then stopped with an INST-3-1920 error - when trying to install via the app.
I also tried to use the "msi" installer which also got further than previous efforts but that stopped with an insufficient privileges to launch EAbackgroundservices.exe.
To be continued but maybe not in this thread.
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