Activation Problems

Fix Microsoft 365 Activation Error 30145-4 and Avoid Security Scams

Maira Mehtab Sep 21, 2026 869 views

Question details

The user encountered error 30145-4 when redeeming a Microsoft 365 product key and was falsely informed by support that an additional $299 security subscription was required for activation.

Product: Microsoft 365
Device & OS: MacBook Air M3
Scenario: Redeeming a product key and attempting to activate Microsoft 365 on a new Mac device.
Observed behavior: The activation fails with network XML error 30145-4, followed by fraudulent tech support demanding a $299 payment for a two-year security subscription before the software can work.

Before you start

Disconnect from any remote support sessions immediately if someone demands additional payment for a security plan, as official Microsoft 365 activation never requires separate security subscriptions.

Solution 1Recommended

Identify the Scam and Verify Your Subscription

Use this solution to confirm your legitimate Microsoft 365 subscription status and bypass fraudulent activation blocks.

Microsoft 365 only requires a valid Microsoft account with an active subscription to function. Any request for a separate, paid security plan to bypass an error code is a tech support scam.

Terminate Unofficial Support Sessions

Close any chat windows or remote desktop applications (like AnyDesk or TeamViewer) if you were connected to the supposed support agent demanding $299.

Access the Official Microsoft Portal

Open your web browser and navigate directly to account.microsoft.com without clicking on any links provided in error pop-ups.

Check Services and Subscriptions

Log in with your Microsoft account credentials and click on the 'Services & subscriptions' tab on the top menu to verify that your newly redeemed Microsoft 365 license appears on your account.

No Extra Purchases Required: Microsoft 365 has built-in security. You will never be asked by legitimate Microsoft Support to buy a separate security subscription to fix an activation error.

Solution 2

Clean Reinstall Microsoft 365 on macOS

Resolve error 30145-4 by completely removing corrupted Office license files and performing a fresh installation from your official account.

Free Microsoft Office alternative

Avoid Complicated Activations with WPS Office

Skip frustrating error codes and subscription scams. WPS Office offers a powerful, entirely free alternative to Microsoft 365 that installs quickly and requires zero complicated activation steps on your Mac.

1. Download the Installer: Visit the official WPS website and download the Mac version for free.
2. Install Quickly: Open the downloaded file and drag the WPS Office icon to your Applications folder.
3. Open Your Files: Launch WPS Office and instantly open your existing Microsoft Office documents without worrying about activation blocks.

Completely free to use with no hidden security fees or mandatory subscriptionsFully compatible with Microsoft Word, Excel, and PowerPoint formats (.docx, .xlsx, .pptx)Lightweight macOS installation that won't trigger complex network XML errorsFamiliar interface allows you to switch and start working immediately without a learning curve

microsoft office alternative - wps office

Frequently Asked Questions

Does Microsoft 365 require a separate security subscription to work?

No. Microsoft 365 includes built-in security features like Microsoft Defender. Any third-party demand for a $299 security subscription to activate the software is a known tech support scam.

What is Microsoft Office error code 30145-4?

Error 30145-4 is typically a network or installation error indicating that Office files cannot be downloaded or validated properly. Scammers often exploit this generic error screen to trick users into calling fake support numbers.

How do I safely verify if my Microsoft 365 product key worked?

You can verify your key by logging into account.microsoft.com and checking the 'Services & subscriptions' tab. If your product is listed there, the key was successfully redeemed and you simply need to download the installer directly from that page.

How do I clear old Office credentials on a MacBook Air?

Open the Keychain Access app from Spotlight search, type 'Office' in the search field, and delete any entries related to Microsoft Office Identities to force the software to prompt for a clean sign-in.

Installation & Activation