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871159-AA1
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MS WS16 (2-Core) Std Add Lic xt SW
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871159-AA1
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- MS WS16 (2-Core) Std Add Lic xt SW
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871159-AA1 Overview
871159-AA1-MS WS16 (2-Core) Std Add Lic xt SW is a licensed operating system add-on designed as an additional core license for Microsoft Windows Server 2016 Standard. This product falls under the Operating System category, is provided via volume licensing with a lifetime (perpetual) duration, and is delivered as a digital key with online activation, ensuring compatibility with Windows environments and meeting the needs of enterprise IT management and server virtualization scenarios.
871159-AA1-MS WS16 (2-Core) Std Add Lic xt SW supports a 64-bit system with multilingual language support and is ideally suited for enterprises and business IT administrators. Its downloadable format, digital key delivery, and seamless online activation process provide an efficient solution for extending server capacity in various managed, corporate, and virtualization use cases on a global scale.
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871159-AA1 Specifications
- Use Case
- Enterprise
- Product Type
- Software License
- License Duration
- Lifetime
- User Count
- N/A
- Device Count
- N/A
- Delivery Method
- Digital Key
- Activation Type
- Online Activation
- Cloud Integration
- N/A
- License Key Included
- Yes
- ESD (Electronic Software Delivery)
- Yes
- Renewable
- No
- Compliance Certifications
- N/A
- Product Region
- Global
- Software Category
- Operating System
- Software Format
- Downloadable
- Support Included
- Yes
- License Type
- Volume
- Language Support
- Multilingual
- Bit Version
- 64-bit
- Platform Compatibility
- Windows
- Product Name
- 871159-AA1-MS WS16 (2-Core) Std Add Lic xt SW
871159-AA1 Use Case
Scalable Hyper-V Virtualization for Growing SMBs
In a mid-sized enterprise running Windows Server 2016, IT managers deploy 871159-AA1-MS WS16 (2-Core) Std Add Lic xt SW to unlock two additional processor cores on their Hyper-V host. This modular add-on license delivers on-demand VM density expansion, enabling cost-effective scaling and optimized resource utilization without forklift upgrades.
High-Availability Failover Clustering in Finance
A financial services firm implements a two-node failover cluster on Windows Server 2016 and adds 871159-AA1-MS WS16 (2-Core) Std Add Lic xt SW to cover extra cores on the passive node. The result is seamless business continuity, sub-30-second failover times, and full compliance with Microsoft licensing requirements for mission-critical workloads.
Accelerated Dev/Test Environments for Software Delivery
A software development team leverages 871159-AA1-MS WS16 (2-Core) Std Add Lic xt SW to provision additional Windows Server 2016 build agents in their CI/CD pipeline. By licensing cores on-demand, they achieve faster parallel builds, reduce bottlenecks in test automation, and shorten release cycles while maintaining transparent audit readiness.
Quality Certifications
To get the detailed certification, please go to the Compliance Center.
Product Comparison Table 
| 871159-AA1 |  Q7G68AAE |  Q7E32A |  871233-371 |  F6Q89A | |
|---|---|---|---|---|---|
| Product Type | Software License | Software License | Software License | Software License | Software License |
| Software Category | Operating System | Operating System | Security | Other | Network Management |
| License Type | Volume | Subscription | Subscription | Volume | OEM |
| License Duration | Lifetime | 1 Year | 1 Year | Lifetime | 3 Years |
| Use Case | Enterprise | Business | IT Admin | IT Admin | IT Admin |
| User Count | N/A | Unlimited | N/A | 5 Users | 1 User |
| Device Count | N/A | 1 Device | N/A | N/A | 1 Device |
| Platform Compatibility | Windows | Linux | Web-Based | Windows | Windows |
| Delivery Method | Digital Key | Digital Key | Digital Key | Digital Key | Digital Key |
| Activation Type | Online Activation | Online Activation | Online Activation | Online Activation | Online Activation |
| Language Support | Multilingual | English | English | Multilingual | English |
| Bit Version | 64-bit | 64-bit | N/A | N/A | 64-bit |
| Cloud Integration | N/A | N/A | N/A | N/A | N/A |
| Software Format | Downloadable | Downloadable | Downloadable | N/A | Downloadable |
| Support Included | Yes | Yes | Yes | Yes | Yes |
| Product Name | 871159-AA1-MS WS16 (2-Core) Std Add Lic xt SW | Q7G68AAE-ClearOS Bronze 1yr E-LTU | Q7E32A-HPE iLO Adv Security Flx Lic 1yr Sup | 871233-371-MS WS16 RDS CAL 5DEV en/ko/ja LTU | F6Q89A-HPE OV for BL 3yr 24x7 FIO Phys 1Svr Lic |
| License Key Included | Yes | Yes | Yes | Yes | Yes |
| ESD (Electronic Software Delivery) | Yes | Yes | Yes | Yes | Yes |
| Renewable | No | Yes | Yes | N/A | No |
| Compliance Certifications | N/A | N/A | N/A | N/A | N/A |
| Product Region | Global | Global | Global | Global | Global |
Reviews & Ratings
K
Kiran Shah
5
No issues during activation.
N
Nikolai Petrov
4
Compatible with existing Windows setup.
A
Ahsan Raza
4
Meets compliance needs.
P
Paula Jenkins
4
Simple and dependable.
Questions & Answers
What is SKU 871159-AA1 – MS WS16 (2-Core) Std Add Lic xt SW?
SKU 871159-AA1 is a Microsoft Windows Server 2016 Standard edition 2-core additional license pack, designed to extend core coverage on licensed servers.
How many processor cores does this Windows Server 2016 Standard add-on license cover?
Each SKU 871159-AA1 pack covers two additional processor cores under Windows Server 2016 Standard licensing requirements.
Can I stack multiple 2-core add-on licenses to meet my core requirements?
Yes. You may combine multiple 2-core add-on licenses (SKU 871159-AA1) to reach the minimum 16-core requirement per physical server.
Do I need Client Access Licenses (CALs) when using SKU 871159-AA1?
Yes. Windows Server CALs remain mandatory for all users or devices accessing the server, regardless of additional core licenses.
Is Software Assurance included in the MS WS16 2-core add-on license?
No. SKU 871159-AA1 is a perpetual license only. Software Assurance must be purchased separately to receive updates and support.
Can I use the 2-core add-on license for virtual machines?
Yes. Additional core licenses apply equally to physical and virtual processors, ensuring compliant licensing for VM workloads.
What are the minimum hardware requirements for deploying Windows Server 2016 Standard add-on cores?
Microsoft recommends x64-compatible processors, 512 MHz or faster, 512 MB RAM, 32 GB storage, and UEFI 2.3.1 firmware with Secure Boot.
How do I activate SKU 871159-AA1 after installation?
Activate via the Volume Licensing Service Center or use the slmgr.vbs tool with your valid product key to register additional cores.
Is the Windows Server 2016 Standard 2-core add-on license perpetual?
Yes. SKU 871159-AA1 is a perpetual license that does not expire, provided you comply with Microsoft’s core-based licensing rules.
Can this 2-core license be used to upgrade from Windows Server 2012 Standard?
No. This SKU is an add-on for Windows Server 2016 Standard. Upgrades from 2012 require separate upgrade licenses or Software Assurance.
What support options are available for MS WS16 (2-Core) Std Add Lic?
You can purchase Microsoft Professional Support or enroll in a Software Assurance plan for 24/7 incident support and planning services.
How does adding cores affect my virtualization rights under Standard edition?
Standard edition grants two Windows Server VMs per 16 licensed cores. Additional cores require more licenses but do not increase VM grants.
Is SKU 871159-AA1 available through Microsoft Volume Licensing agreements?
Yes. You can acquire the Windows Server 2016 Standard 2-core add-on license via Enterprise Agreement, Open License, or CSP programs.
What is the price of the Windows Server 2016 Standard 2-core add-on license?
Pricing varies by resellers and volume agreements. Contact your Microsoft reseller for current list prices and volume discounts.
What’s the difference between the base Standard license and the 2-core add-on license?
The base Standard license covers the first 16 cores. SKU 871159-AA1 extends coverage by 2 cores per pack to meet larger hardware configurations.
Where can I download the installation media for Windows Server 2016 Standard?
Visit Microsoft’s Volume Licensing Service Center or the Evaluation Center to download official ISO files; apply your product key during setup.