Windows 10: No admin privileges after renaming username

Renamed my user account via netplwiz and now I have lost admin privileges on my only admin account. Can only select no when "Do you want this app to make changes to your device" pops up. Is there any way to undo it?Edit: I wasn't able to reply for some reason so I edited my postStill can't find the solution I'm looking for and here is some further information regarding the issue:-Renamed username of only admin user on my device netplwiz-Renamed it from Szymo -> Szymon-Probably The cause of the issue: Directories and admin privileges still connected to Szymo and not the renamed Szymon user

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Need help with Admin privileges

That's what puzzles me, I am logged-in as (my username) but still won't give me admin privileges. I checked under control panel/users amd it shows me as a local account. Tried to right click on CMD prompt but the "RUN AS ADMINISTRATOR" doesn't show up

 

Admin Rights for Renaming Music

Hi Ryan,

We appreciate you for being a part of Windows 10.

Please be informed that as you signed in to the Windows 10 through normal user account, you need administrator credentials to rename a file in Music. I suggest you to contact your administrator to assign the administrator privileges to your user
account.

Follow the below steps to assign the administrator privileges to your user account.

Note: Follow the below steps only if you have permissions to sign in to the Administrator user account.

• 
  Login to the computer using administrator user account. Press
  Windows + I keys on the keyboard to open settings menu.
  
• 
  Click on Accounts.
  
• 
  Select Family and other users from the left navigation pane.
  
• 
  Click on your user account under the other users.
  
• 
  Click on Change account type, assign the privileges to
  Administrator and click on OK.
  
• 
  Login to your user account and check if you are able to rename the Music.
  

If you do not have permissions to sign in to the administrator user account, contact your administrator and request them to assign the admin9istartor privileges to your user account.

I hope the above information helps. Kindly let us know if you need any further assistance with Windows. We are glad to assist you.

Thank you.

 

Virtual Machine on a flash Drive without admin privileges

so... no go for vpc without admin privileges ?