Windows 10: Adding an account

I recently bought a desktop computer with windows 10 and the old owners account is still on there and it's not letting me add any accounts I tried clicking on the icon that doesn't work, nothing is working

:)

 

Remove account

I suggest you backup your personalized files first before removing the account.
To delete an account, follow these steps:

1. Press WIN + X keys and click Command Prompt (Admin) from the menu.
2. Type the following command and press Enter. Replace test with the name of your sister's account. Code:

 

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?