In an elevated command prompt run the following: wmic useraccount where name='currentname' rename newname currentname will be what it currently is newname is what you want it to be. e.g. wmic useraccount where name='JigglePiggle' rename JP wmic useraccount where name='Ivan' rename Limpo ###################################################### 3. To Enable the Built-in Elevated "Administrator" Account A) In the elevated command prompt, copy and paste the command below, press Enter, and go to step 6 below. (see screenshot below) net user Administra(d)or /active:yes If you had previously renamed the built-in "Administrator" account's name, then you will need to substitute Administrator in the command below with the new name instead. If your Windows uses a different language than English, then you would need to substitute Administrator in the command below with the translation for your language instead. Enable or Disable Elevated Administrator account in Windows 10-enable_built-in_administrator_cmd.jpg 4. To Enable the Built-in Elevated "Administrator" Account with Password A) In the elevated command prompt, copy and paste the command below, press Enter, and go to step 6 below. (see screenshot below) net user Administra(d)or password /active:yes Substitute password in the command above with the actual password you want to use to sign in to the built-in Administrator account with. If you had previously renamed the built-in "Administrator" account's name, then you will need to substitute Administrator in the command below with the new name instead. If your Windows uses a different language than English, then you would need to substitute Administrator in the command below with the translation for your language instead. 5. To Disable the Built-in Elevated "Administrator" Account This is the default setting. A) In the elevated command prompt, copy and paste the command below, press Enter, and go to step 6 below. (see screenshot below) net user Administra(d)or /active:no If you had previously renamed the built-in "Administrator" account's name, then you will need to substitute Administrator in the command below with the new name instead. If your Windows uses a different language than English, then you would need to substitute Administrator in the command below with the translation for your language instead. Enable or Disable Elevated Administrator account in Windows 10-disable_built-in_administrator_cmd.jpg 6 When finished, you can close the elevated command prompt if you like. ##################################################### Here's How: 1 Sign out the user account (ex: "Brink2") you want to change the name of its user profile folder (ex: "C:\Users\Brink2.BRINK-W10PC"). 2 Sign in to any administrator account on the PC that you are not changing its user profile folder name. If you do not have another administrator account, then you can enable the built-in Administrator to sign in to do these steps in. 3 Open a command prompt. 4 Type the command below into the command prompt, and press Enter. (see screenshot below) Make note of the SID (ex: "S-1-5-21-237214570-1361766723-3061440971-1015") for the account (ex: "Brink2") you want to change the name of its user profile folder. You will need to know this SID in step 6 below. wmic useraccount get name,SID Change Name of User Profile Folder in Windows 10-sid.png 5 Press the Win + R keys to open Run, type regedit into Run, and click/tap on OK to open Registry Editor. 6 Navigate to the registry key below in the left pane of Registry Editor. (see screenshot below) HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\ProfileList\ Substitute in the registry key path above with the actual SID (ex: "S-1-5-21-237214570-1361766723-3061440971-1015") from step 4 above for the account name (ex: "Brink2") you want to change the name of its user profile folder. For example: HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\ProfileList\S-1-5-21-237214570-1361766723-3061440971-1015 Change Name of User Profile Folder in Windows 10-change_user_profile_folder_name-1.png 7 In the right pane of the SID key (ex: "S-1-5-21-237214570-1361766723-3061440971-1015"), double click/tap on the ProfileImagePath expandable string value (REG_EXPAND_SZ) to modify it. (see screenshot above) 8 Change the current name of the user profile folder in its full path (ex: "C:\Users\Brink2.BRINK-W10PC") to what you want (ex: "C:\Users\Brink2") instead, and click/tap on OK. (see screenshot below) Make note of the current full path and name (ex: "C:\Users\Brink2.BRINK-W10PC") and new name (ex: "Brink2") for this account's user profile folder. You will need to know both in step 10 and step 12 below. Change Name of User Profile Folder in Windows 10-change_user_profile_folder_name-2.png 9 When finished, you can close Registry Editor and command prompt if you like. (see screenshot below) Change Name of User Profile Folder in Windows 10-change_user_profile_folder_name-3.png 10 Open File Explorer (Win+E), and navigate to the original full path of the user profile folder (ex: "C:\Users\Brink2.BRINK-W10PC") from step 8 above. 11 Right click or press and hold on the user profile folder (ex: "Brink2.BRINK-W10PC"), and click/tap on Rename. (see screenshot below) Change Name of User Profile Folder in Windows 10-change_user_profile_folder_name-4.jpg 12 Change the current name of the user profile folder (ex: "Brink2.BRINK-W10PC") to the same new name (ex: "Brink2") from step 8 above. (see screenshots below) Change Name of User Profile Folder in Windows 10-change_user_profile_folder_name-5.jpg Change Name of User Profile Folder in Windows 10-change_user_profile_folder_name-6.jpg Change Name of User Profile Folder in Windows 10-change_user_profile_folder_name-7.jpg 13 You can now close File Explorer if you like.