| Error Code / Message | Cause | Resolution | |----------------------|-------|-------------| | "Product deactivated" | Subscription expired or license removed | Renew subscription or reassign license in admin center. | | "Something went wrong [0x80070005]" | Permission issue (often on managed devices) | Run Office as administrator or contact IT. | | "No internet connection" | Proxy/firewall blocking activation URLs | Allow *.office.com , *.officeconfig.msocdn.com , activation.sls.microsoft.com . | | "Account not in this domain" | Wrong account used for organization plan | Use the work/school account, not personal Microsoft account. | | "Product key already used" | Key previously activated on another device | Deactivate from old device or contact support. |
: Launch Word, Excel, or PowerPoint on your PC or Mac.
: When prompted, click Sign In and enter the email address and password associated with your Microsoft 365 subscription. microsoft 365 activate
(LinkedIn/Twitter) to promote your IT services Troubleshoot a specific error code you are currently seeing Let me know which audience or platform you are targeting! Microsoft 365 activate - Microsoft Q&A
Conflict often occurs if an older trial version is still installed. | Error Code / Message | Cause |
The activation process depends on how you purchased your subscription.
Go to File > Account in Word. Ensure the email shown matches your subscription. | | "Account not in this domain" |
There are two primary methods to activate Microsoft 365: