: If you have a new product key, visit setup.office.com to link the key to your account and download the official installer. Risks of Using Third-Party ".rar" Files
: Build 14430.20276 belongs to Version 2109, which was a standard release in late 2021. For the most secure experience, users should target the latest Update History which includes critical security patches.
: This is a one-time purchase license, meaning it does not require a monthly subscription like Microsoft 365. Official Ways to Download and Install
: Word, Excel, PowerPoint, Outlook, OneNote, Publisher, Access, and Microsoft Teams.
: Unofficial builds may be missing updates or include modified system files that lead to crashes.