Office Installation Errors

Fix: Office Installer Requests Administrator Password on Mac

Camila MilosovichCamila Milosovich Oct 10, 2026 868 views

Question details

The user is prompted to enter an administrator password while attempting to install Microsoft Office on a Mac, which causes confusion regarding which password is required.

How to Fix Office Installer Requesting an Administrator Password on Mac
Product
Microsoft Office Home & Student 2021
Device & OS
macOS
Scenario
Installing Microsoft Office software on a Mac desktop or laptop.
Observed behavior
The installer pauses and displays a prompt requesting an administrator password to proceed with the installation.
Before you start

Ensure you know the local login password for the Mac computer you are using, or have an administrator present to authorize the software installation.

Solution 1Recommended

Enter the Mac System Administrator Password

Use the local Mac administrator credentials instead of your Microsoft account password to authorize the software installation.

When installing new software system-wide on macOS, Apple's security protocols require authorization from a local administrator account. This prompt is generated by the Mac operating system, not by Microsoft Office.

1
Identify the password prompt

When the installation dialogue box appears requesting a password, note the username displayed. It corresponds to a local account on your Mac.

2
Input your Mac password

Type the exact password you use to unlock your Mac computer upon startup, then click 'Install Software' or 'OK'.

3
Ask the Mac administrator

If you are logged in as a Standard User and do not have administrative privileges, you must ask the owner or IT administrator of the Mac to enter their credentials to proceed.

Enter the Mac System Administrator Password
Password Distinction: Do not enter your Microsoft account, Outlook, or Office product key password in this prompt. The system strictly requires the Mac's local administrator password.
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Frequently Asked Questions

Why does Microsoft Office need an administrator password on Mac?

macOS requires administrative permission to make changes to the system's Applications folder and install new software packages. This is a built-in Apple security feature to prevent unauthorized applications from modifying your system.

Can I install Microsoft Office without an administrator password?

Generally, no. Standard user accounts cannot install system-wide applications on macOS. You will need someone with administrator privileges to authorize the installation process.

I entered my Microsoft password but the installer rejected it. Why?

The macOS installer is requesting your Mac system login password (the one you use to log into or unlock your computer), not the password for your Microsoft, Outlook, or Office account.