Issue With Windows 10 explorer control 7zip

So, i am trying to unzip something with 7zip, and it keeps on giving me access denied issues, which is driving me insane, from what i read, it had something to do with UAC, tried that, clicked ok, and restarted my laptop, now i am still getting an Access Denied Even after restarting it? I can copy and move files just fine? Why am i not getting permission to unzip a file i want to unzip? I am Administrator last i checked, also, why is there in security, two users, when i didn't make two users? One is Admin, the other, normal user? Any helpful insights would be nice please.

Denial

I am Administrator last i checked, also, why is there in security, two users, when i didn't make two users? One is Admin, the other, normal user?

There is a Hidden, by default, Administrator account, then there is a User with Administrative rights account, a Standard user account and probably a Guest account. The Hidden account can be shown but not normally necessary. Every once in awhile the hidden account has to be revealed as it can do more than a User with administrative rights but I've seldom found that necessary. All that may be a rather simplified explanation.

Thank, but i find it silly, that you have to unzip it at the desktop. And it makes things clearer