I use win 10 version 21H1 (Build 19043.1083). I had my lock screen timeout at 5 minutes, working fine. Then I took an online proctored exam by PearsonVue and needed to install OnVue software, which messed up all sorts of settings. Most annoyingly, the screen timeout setting. Its now at 1 minute, which is a time I often spend without any action when reading something.
So I tried several things to fix this:
- I followed this tutorial: https://www.howtogeek.com/267893/how-to-change-the-windows-10-lock-screen-timeout/ where I set the following:

No success unfortunatly
- I found a post on superuser (Screen (not Lock Screen) Timeout Stuck at 1 Minute), suggesting the following registry setting, which also seems fine:
Also no success.
So I am wondering what is left that I can do to fix the screen lock timeout which is still at 1 minute, even after several reboots. Any ideas?

