You are correct. By external, in this case, I'm meaning a non-employee guest of the business.

We have A/V rooms with a single PC in each. We also have internal and external users who will use it. When an internal user uses it, we want them on our internal network. When an external person uses...

Yes, on deleting NTUSER.DAT, I can delete it in safe mode.

Well, I can manually delete the profile via the registry. Then I can delete the folder in users for that user, but it won't let me delete NTUSER.DAT and a few others that it says are in use. But...

As an administrator I sometimes delete old user profiles on machines. Up until recently I could easily do this with System Settings / About/ Advanced /Advanced tab / User Profiles and then Delete for...

Here's what I found works... Changing the display refresh rate, on the laptop only, to 59.950 Hz. The projector wants 60 HZ, but the laptop needed 59.590. Anyway, so far having those settings is...

Well, I looked over all of that but I don't think any of it applies in this case. Any other ideas?

I have a laptop connected to a large screen projector. The laptop is running Windows 10 Pro, version 10.0.19044. The goal is to have whatever is displayed on the laptop to be displayed on the...

I believe I finally found the culprit. In the Local Security Policy menu, Local Policies and User Rights Assignment, under Shut Down the System, the Users group was missing. It only had...

Does anyone have any suggestions beyond using a fresh OS?

Oh, I fully expect a fresh OS will correct the problem as well. I'm virtually positive that it's not a hardware issue but a software one. I was hoping to fix it in place though.

It is identical, mostly. I believe I had this problem prior to doing something that I'll point out, but assuming I didn't, I had done this. The original PC was a laptop. I replaced it with a mini...

No, I think I'm not making myself clear. Virtually everyone logs on to these A/V systems with a standard account. Almost no one has elevated privileges. And the group policy for eliminating all power...

Yes, I've checked. That policy is disabled because I do want Restart available as an option. And all of the other A/V PCs (we have 9) are operating as they should, only allowing Restart, not...

Sorry, this is Windows 10 Pro, 21H2.

I commonly set all of our PCs for our A/V systems to where the power buttons only allow restarts, not Sleep or Shutdown. They'll all on Windows 10. I set the 2 registry keys as follows:
...

Bumping to see if there's any other ideas. Thx.

Does anyone else have any ideas on this? I still can't get the lockscreen to change to what I want. Thanks in advance.

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I also tried contacting support for Winaero since it...

Well, I can't get that to reliably change the lock screen either. It keeps choosing this image, which is img101.png at that location, no matter what I select with that registry key, such as a...

I follow most of what you said, but don't follow:

copy the notdimmed.jpg from one of the other folders to LockScreen_W, restart Explorer.

Which one should I copy? Can I choose a picture of my...

I looked into changing the default lock screen image that's shown after a restart, not the one you might choose like Windows Spotlight. Here's the normal default:
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Supposedly you can do that...

Any other suggestions?

I'll do that. What would you expect to see there when things are wonky?

I have a strange and difficult (for me) problem to figure out. I have a user whose machine appears to have a performance problem. Every few days the mouse movement will get herky-jerky and things...

On my machine the monitor isn't turning off immediately after a restart. It's not been logged into yet, but it's simply staying on. Normally it sleeps very quickly if no one logs on at the lock...