How to Change Name of Local Account Windows 10
Renaming your Windows 10 account seems like a simple task, but there's more to it than you'd think.
When you set up a new Windows 10 PC, the part where you choose your username may catch you off guard. If that's the case, you may choose the first thing that pops into your head or something random and temporary that you intend to change later. But surprisingly enough, changing your account name in Windows 10 isn't exactly a straightforward process. It can be done, but there are a few important things to consider as you go about it. Read on for the details.
Change Account Name and Rename User Account Folder in Windows 10
Your username is part of your identity used to sign in to Windows 10. Mistakes can sometimes happen when creating a username. There are several ways you can fix that.
Currently, the Settings app doesn't offer an option to edit usernames. There are two ways to work around this limitation.
Method 1: Classic Control Panel
Find and open the classic Control Panel. One way to do this is to press Windows + R and then type Control, then hit Enter.
Open the User Accounts control panel, then click Manage another account.
Click the account you want to edit.
Click Change the account name.
Enter the correct username for the account, then click Change Name.
Method 2: User Accounts Advanced Control Panel
There is another way you can do it.
Press Windows key + R, type: netplwiz or control userpasswords2, then hit Enter.
Select the account, then click Properties.
Select the General tab, then enter the user name you want to use. Click Apply then OK, click Apply then OK again to confirm the change.
What about Your User Folder Name?
Changing the username is pretty basic, but this change is not reflected in the User folder located within the C: drive. Renaming it can be risky—sometimes sticking with it or just creating a new user account then copying your files to the new account is a better option. Yes, it's annoying, but it's better than ending up with a corrupt user profile.
If you must change it to hush your OCD, there is an advanced option available. This involves using the command line to access the security identifier (SID) then making the necessary change in the Registry. Before you go any further, enable then log into the built-in Administrator account. As a precaution, create a system restore point in advance.
To access all the information within the SID requires using the Windows Management Instrumentation Command-line to reveal the value needed to find and change it in the Registry. Open the command prompt with Administrator privileges, type: wmic useraccount list full, then hit Enter. Scroll down, then take note of the SID values for the account you want to change.
Type: cls to clear the screen.
The next step is to rename the account. Doing this from the command line is just as easy.
Type CD c:\users then hit Enter. Type: rename OldAccountName NewAccountName
For example, rename "Angry Dah Cosof" "Angela Brown."
Open Start, type: regedit
Right-click Regedit.
Click Run as administrator.
Navigate to:
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\ProfileList
Remember that SID value we accessed earlier? Now is the time to reference it.
Once you find it, select it, then double-click the value ProfileImagePath. You will see the old name we had earlier is still there. Change it to the new name you want to use.
There you have it, the name you actually intended. Mistakes like this can happen, but there is always a way to fix them.
How to Change Name of Local Account Windows 10
Source: https://www.groovypost.com/howto/change-account-name-windows-10/