Windows Licensing

• Licensed product — The Windows License applies to the complete Vietnam Office suite, including Văn Bản — Vietnam Office, Bảng Tính — Vietnam Office, and Trình Chiếu — Vietnam Office. The three applications share the suite entitlement and are not licensed as three independent Licenses.
• Licensed Platform — This License applies only to Windows. Purchasing Vietnam Office Desktop – Windows does not automatically grant rights to use Vietnam Office on macOS, Android, or iOS/iPadOS.
• Licensed Version — Customers may use only Versions covered by the Windows License's Version Entitlement. Rights to one Version do not automatically include every future Version.
• Device-Bound Licensing principle — Following initial Activation, the License/Entitlement is associated with the Windows device through the Vietnam Office device identity and trust mechanism. Device Binding is one of the conditions used to verify usage rights on that device.
• Standard licensing flow — Purchase Vietnam Office Desktop – Windows → Order recorded → Payment confirmed → License/Entitlement granted → Download and install the official Windows release → Initial Activation → Verify Product + Version + Platform → Device Binding → Activation completed.
• No Product Key entry in the standard process — Customers do not manually enter a Product Key or Hardware ID to activate Vietnam Office Desktop – Windows. Verification and association of rights with the device are performed through the electronic licensing mechanism.
• Internet connection for initial Activation — The device requires an appropriate Internet connection so the system can verify the License/Entitlement, Version, and Platform and complete Device Binding during initial Activation.
• Activation conditions — Activation succeeds only when Product = Vietnam Office, the Version is covered by Version Entitlement, Platform = Windows, the License/Entitlement is in an eligible state, the granted quantity has not been exceeded, and the device satisfies Device Binding requirements.
• Installation does not equal Activation — Downloading or installing Vietnam Office on Windows does not create a License or establish usage rights for the device. Rights are confirmed only after the required verification process is completed.
• A License may not exceed its granted scope — The number of devices used must comply with the Quantity and conditions of the License/Entitlement. Repeated installation or Activation does not create additional usage rights.
• Offline use — After valid Activation and Device Binding, Vietnam Office Desktop – Windows may continue to use supported Offline functionality within the applicable License scope and policy.
• Certain operations still require Internet access — Initial Activation, Updates, Restore, certain entitlement-verification operations, or online services may require an Internet connection even when the product supports Offline use after Activation.
• Offline entitlement information — After Activation, Vietnam Office may use signed License information and required trust data to verify Offline usage rights on the bound device.
• Reinstall on the same device — Customers with a valid License may reinstall Vietnam Office on the entitled Windows device. Reinstall does not create a new License or increase the permitted device quantity.
• Restore after Reinstall — After reinstallation, the system verifies the Product, Version, Platform, License/Entitlement, and Device Binding. If the conditions remain valid, the existing usage right may be restored without repurchasing the License.
• Reinstalling Windows — After reinstalling or restoring the Windows operating system, Vietnam Office may require re-verification of the License/Entitlement and Device Binding before usage rights are restored.
• Hardware changes — Significant hardware changes may affect device identity. If the system can no longer validate the existing Device Binding, the customer may need additional verification or a Device Transfer under the applicable policy.
• Changing devices — A Windows License does not automatically transfer to a new Windows computer merely by reinstalling the software. Moving usage rights to another device must follow the Vietnam Office Device Transfer policy.
• Device Transfer does not change the Platform — Where permitted, Device Transfer only moves rights between eligible devices within the Windows License scope. It does not convert a Windows License into a macOS License.
• A Windows License cannot be used on macOS — Platform Entitlement = Windows is a required condition of the License. Installing Vietnam Office on a Mac does not convert a Windows License into a macOS License.
• Updates within the entitlement scope — Customers may install eligible Windows Releases/Updates within the applicable Version Entitlement and current Release policy.
• Upgrade to a new Version — If a new Version is outside the current Version Entitlement, the existing Windows License does not automatically grant rights to that Version. An applicable Upgrade or new Version Entitlement is required.
• Use only PUBLISHED Releases — Only Windows releases approved by Vietnam Office and placed in PUBLISHED status are considered official Releases for distribution, installation, Update, Reinstall, or Restore.
• Official installation source — The Windows installer must be obtained from the Vietnam Office Download Center or another official distribution channel published by Vietnam Office. Do not use Installers, Patches, or Packages from unverified sources.
• System Requirements — A valid License does not mean that every Windows device can run Vietnam Office. The device must satisfy the System Requirements for the installed Version/Release.
• Enterprise Windows licensing — For organizations and enterprises, Windows Licenses may be granted according to the Quantity specified in the Order or contract. Activations must remain within the granted entitlement scope.
• Project Windows licensing — For projects, rights are managed according to the approved Project + Product + Version + Platform = Windows + Quantity + Activation Policy.
• License status — Activation, Reinstall, or Restore may proceed only when the License/Entitlement is in an eligible state. Rights may not be confirmed if the License is suspended, revoked, invalid, or exceeds the granted Quantity.
• License sharing or duplication is prohibited — Customers may not use a Windows License to create additional usage rights beyond the granted quantity or share rights with devices, individuals, or organizations outside the permitted scope.
• Device Binding or Activation may not be bypassed — Users may not disable, emulate, modify, or interfere with License verification, Device Binding, Activation, or other technical measures used by Vietnam Office to control usage rights.
• The Vietnam Office backend is the authoritative verification source — The backend determines Product Entitlement, Version Entitlement, Platform Entitlement, License status, Quantity, Device Binding, Update/Upgrade rights, Restore, Revocation, and other applicable entitlement conditions.
• Example — Initial Activation — A customer purchases Vietnam Office Desktop – Windows, completes payment, and receives a License. After installing the official Windows release and launching the application for the first time, the system verifies the entitlement, associates the License with the device, and completes Activation.
• Example — Reinstall on the same computer — A customer removes Vietnam Office and reinstalls it on the previously bound Windows device. The system re-verifies the License and Device Binding; if valid, the right is restored without creating a new License.
• Example — Moving to a new computer — A customer replaces a Windows computer. Installing Vietnam Office on the new device does not automatically release or transfer the License from the previous device. The customer must complete Device Transfer under the applicable policy where eligible.

Windows licensing principle: purchase Vietnam Office Desktop – Windows → receive the applicable Product + Version + Platform Entitlement → install an official PUBLISHED Windows release → complete initial Activation through backend verification → Device Binding → use according to the License → Update/Reinstall/Restore within the entitlement scope → use Device Transfer when moving to an eligible device → no automatic transfer to another Platform and no use beyond the granted Quantity.