Hello @chrisgray
Thank you for reaching out on the community and telling us about your issue. I do apologize for the issue you're having. It sounds like on your computer you may not be using your administrator profile from the error you're getting. Here's an article from Microsoft showing on how to switch user accounts to make sure you're using the correct one.
https://support.microsoft.com/en-us/windows/how-to-switch-users-accounts-in-windows-10-660d4dcd-fa8d-7467-10b3-fee0e70e11d4
If you are on the correct one let us know so we're able to find out what exactly could be causing the issue.
Thanks,
Quicken Francisco