Presuming Windows 10, to determine your account type, open Settings, Accounts, Your Info Pane (which is what opens initially by default).

In that pane your account will either be identified as Administrator or Standard.  You are not going to be able to touch anything not owned by you (ignoring public folders) unless you have admin privileges.

I have not, in years, had Windows fail to give me some sort of choice in the "you don't have permission to delete this file" dialog to take permission when necessary.  But I don't memorize the phrasing since it doesn't happen often.  Having exact message text is very helpful when this sort of thing occurs in order to advise accurately.
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Brian - Windows 10, 64-Bit, Version 21H1, Build 19043  

It is better to be hated for what you are than to be loved for what you are not.

           ~ André Gide