Windows 10: Running as a local Admin account

I am running Windows 10, currently running as a local Admin account and I am the only one using the machine.
However, I am thinking to run as a Limited User instead by creating another User account as making that as an Admin account.

Couple of questions though.

1). My password is really long and complex, so can I use the same password for both my Standard and Admin account?

2). How can I install all the security Windows updates with my Standard account without logging out and signing in as the Admin account? Using my Standard account, I only need to install all updates and the rest of the apps I can install using only as Admin account. Would this be possible?

Thanks

:)

 

Local Account to Admin Account - Admin Unavailable

I was hoping to do this, but can't get to the elevated command prompt because when it pops up the admin box, I only see the "NO" and not the "YES" with an option to put in the admin password. Any way to bypass this?

 

Local Account to Admin Account - Admin Unavailable

We suggest that you try to use the System File Checker tool to help with
your concern. This tool will scan your system files and it will repair corrupted or missing system files.

Get back to us if you need further assistance.

 

1. using the same password wouldn't make much sense to me. Why using a Limited account and the same password? Use a PIN, if passwords are too complex.

2. I have no problem installing updates. When installing an app, pop up appears, where you can provide the admin password.

xx) Only thing you won't be able to use ar some administrator utilities, like Disk manager