Cumulative Update KB4103721 Windows 10 v1803 Build 17134.48 - May 8

sgage said:

Alas, did not fix it for me...

Which method did you try? The command prompt or the GPO?

juliocosta said:

After this update i have the same problem, the desktop's not detect in the network by name but only whit IP.

@juliocosta, turning on the SMB1 Client on the machine that can't see the desktop should fix that. As a deprecated feature the upgrade to 1803 probably turned it off.

Bree said:

@juliocosta, turning on the SMB1 Client on the machine that can't see the desktop should fix that. As a deprecated feature the upgrade to 1803 probably turned it off.

@Bree, @juliocosta

Please take that into account, before you decide, what to do!

Enable or Disable SMB1 File Sharing Protocol in Windows | Windows 10 Tutorials

sgage said:

I used regedit. I have Home, so no GPO. I couldn't do it from the command prompt: Set-ItemProperty was not recognized as a command.

I'm very sorry, huge mistake from my part!!!
It should have said, from an elevated PowerShell. Set-ItemProperty is PowerShell command.
Try running the commands from an elevated PowerShell

ddelo said:

@Bree, @juliocosta

Please take that into account, before you decide, what to do!

@ddelo, would that I could, but I have no option. There are several legacy devices on my network that require SMB1. My network storage and my SmartTV would be inaccessible without it.

Bree said:

@ddelo, would that I could, but I have no option. There are several legacy devices on my network that require SMB1. My network storage and my SmartTV would be inaccessible without it.

That's what I meant before. "Take it into account", i.e. examine your options! I guess you don't really have an option!