Remote desktop without locking screen

Enable or Disable Lock Screen in Windows 10

I look forward to hearing your results.

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Hello again:
Sorry for answering too late.
I think all my tests are correct and i think i have drawn conclusions:

The Method THREE works for me at last. Following the steps all are OK...but there's 3 important things:

• I reboot the PC-HTPC ... starting the task manager [and the method THREE]. Starting too 3 programs [openPHT = plex media theater + Chrome + Steam client.
• If a remote session from another PC at home is started [logging whatever user, indeed the same -htpc] and after the session is closed [RDP remote desktop] ... then: in amount of time the damn lock-screen appears [and i don't know why the openPHT its closed]. I mean: starting a RDP session and closing after, causes the PC to see the lock screen. It doesn't matter what user to use
• The same procedure using teamviewer [i asume the PC-HTPC "detects" another user loggin in] causing the same as above.

If a let the PC-HTPC without logging in from another computer, then, everything is OK about the lock screen. Doesn't apperars.
The question is:
How Win10 pro is "detecting" this "intrusions / loggins" causing the re-show the lock screen.
I imagine that there is a normal user logged [-htpc] ... if the same user is doing "another logging" from another PC, the first one user are quit?..

It's a mess...otherwise, if i remain the PC in normal working, everything is OK
Sorry if explaining me so bad!