I have a customer's Surface Pro (original) joined to a domain. I can't change the screen lock timeout through all the usual avenues- power settings, screen saver settings.
I even added these 2 registry entries:
System automatically enters sleep after waking from sleep
Add "System unattended sleep timeout" to Advanced Power Settings
Both setting appear in advanced power setting now and have been set to 30 minutes for AC/battery with no luck.
I have rebooted numerous times after making changes.
I have not reinstalled Windows. That is not an option.
I have been working on this for several hours over 2 different days and have not made any headway. If I am told there is no reliable way to change the timeout I will take that as an answer. Not interested in try this or try that. Looking for people with experience who have solutions to this problem who have reliably solved it.
Went through this long post with no luck. Not interested in repeating these steps:
If someone has solved this problem, we could make a big difference to all Surface owners by making the solution public! Thanks in advance for your help.