Create a Local Account in Windows 10

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Press Windows key + X
Click Computer Management
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Expand Local Users and Groups
Click Users
Right click then click New User
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Enter the information for the account such as User Name, Full Name, Description (optional) and the password, confirm it.
Uncheck 'User must change password at next logon' if this account is for your purposes and and uncheck the 'Password never expires' box. If the account is for someone else, leave the defaults.
Click Create then Close
Thats it!
Method 2:
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Press Windows key + R
Type: control userpasswords2
Hit Enter or click OK
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Click Add
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Click Sign in without a Microsoft account (not recommended)
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Click Local account
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Enter your account information then click Next
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Click Finish
Thats it!
Method 3
You can use the command line as another way to create a local account.
Press Windows key + X
Click Command Prompt (Admin)
We are going to attempt to create a new user account.
Example: net user Username Password /add
Where there is Username replace with the account name and where there Password replace with the desired password.
Example: net user adacosta2 pwhelp /add
Press Enter on your keyboard
You should see the following message The command completed successfully.
Type exit to close the command prompt.
Restart the machine and try logging into the new account.