Windows 360 install on my computer

Question

Windows 360 install on my computer

Fred Ienna 0

I have tried to install MS360 several times, followed the instructions and keep getting error code 30015-11 (3221356598) and I have deleted program, restarted computer,etc. Thia sucks to spend hours installing a program. I just paid this morning for the update and it loaded on my deaktop computer but not this laptop.

John Jefferson Doyon 91,020 Reputation points Independent Advisor

2026-10-17T20:03:00.0533333+00:00

Hi, @Fred Ienna

Where did you purchase Microsoft 365? Was it directly from Microsoft, through a third-party retailer, or using a product key?

When you sign in to https://account.microsoft.com/services with the Microsoft account used for the purchase, does your Microsoft 365 subscription appear there, and does it show as active?

Thanks!

1 answer

Your answer

John Jefferson Doyon 91,020 Reputation points Independent Advisor

2026-10-17T20:03:00.0533333+00:00

Hi, @Fred Ienna

Where did you purchase Microsoft 365? Was it directly from Microsoft, through a third-party retailer, or using a product key?

When you sign in to https://account.microsoft.com/services with the Microsoft account used for the purchase, does your Microsoft 365 subscription appear there, and does it show as active?

Thanks!

Answer 1

Try these steps in order:

Restart the laptop and try the install again Save work, close all apps, restart Windows, then sign in with the Microsoft account associated with the Microsoft 365 purchase and run the install again.
Use the Microsoft 365 offline installer This can bypass problems caused by proxy, firewall, antivirus, or Internet connection issues during installation.
Completely uninstall Office, then reinstall Use the uninstall troubleshooter to remove Microsoft 365 or older Office versions from the same Windows PC, restart when prompted, then reinstall. Important:
- The uninstall troubleshooter requires Windows 10 or higher.
- It can’t uninstall Office 2024.
If Office appears to install but apps do not work, repair Office On Windows 11, right-click Start > Installed apps. On Windows 10, right-click Start > Apps and Features. Select the Microsoft Office product > Modify > Online Repair > Repair. This repairs the full Office suite.
Check Windows Update Install available Windows updates, then try the Office install again.
Do not edit the Windows Registry to force past restart-related install issues That can cause additional problems later.

Since the desktop installed successfully but the laptop did not, the most relevant next actions are the offline installer and a full uninstall using the troubleshooter before reinstalling.