Windows 10: PC disjoined from AD Yet retained account name from AD, why?

Hello all I have a windows 10 device which I've removed from our Active Directory. But after reboot the login name presented is still my accountname from AD. I don't have the option to change to the local account. I'm unable to do anything with this device now. Does anyone know of a way to force a blank username field to appear?

:)

 

Gmail doesn't permanently retain added accounts

I have several Gmail accounts, using this method to add them

but when I go back there, it could be the next day, to select one of them, all that remains is my main account. What am I doing wrong?

 

Forum users with Hotmail/Outlook/Exchange account

The two-step verification emails show up in my inbox but I added a rule to mark the domain name safe a long time ago (verified that "techpowerup.com" is still in the safe sender list).

 

Windows 10 slow running performance when joined an AD and using an AD-Account

We recently updated our teams infrastructure to Windows 10 within an AD.

Everything works fine except:
We're observing slow performance in some situations. First observed was it as our Post-Compiling Powershell skript within VS2017 ran slower than below Windows 7. Google was also not helpful - but by now we hadn't the time to investigate further. Now recently we updated our CI build farm, too (TeamCity as CI Server). There we saw increasing build times by over 100% - a build for reference took 7m33s before the upgrade, after it stays at 17m05s.

Research here at StackExchange and google were not expressive.
A little more research brought us the finding that if we run the Agent with an local account on the machine (still in AD) we're getting build times around 8m50s.

The buildjob contains different MSBuild steps, nUnint runner and some powershell steps. No network activity - all is done locally on the agent. One MSBuild step took previously 36s and now 1m02s. Same with the NUint step - 30s vs 1m24s (all with the AD-User).

Any suggestion where the problem is?