Hi Shane,
I got myself ready this week-end to spend some long hours in front of my pc to perform the repair.
Decided to do one last thing before that and I am very GLAD I did !
I decided to run the Windows repair aio tool one more time, now that the UAC is switched off.
I just thought what the heck. I was asked to get the latest version, which I did (2.8.2).
And run the All-in-one tool for the following tasks :
01, 02, 03, 04, 10.
Rebooted the machine and perform some logins with different types of users.
All, including standard type users logged in without any issue !
I then switched on the UAC after that. Same behaviour ! Alleluia !
I really don't know which part fixed the problem.
Is it the 2.8.2 version ? Can it be that the aio tool went further because the UAC was off ?
But I am glad it is over !
Thanks for everything.
Alain