If you are using VCUST and Windows 10, can you please provide me with more details about the issue that you are having? VCUST is designed for OEM Windows Product Key Injection (OEM Activation 3.0, OA3) for Nuc products. Unless explicitly stated, Intel® is not responsible for the contents of such links, and no third party endorsement of Intel® or any of its products is implied. *Links to third-party sites and references to third-party trademarks are provided for convenience and illustrative purposes only. You might also want to check the following Microsoft® article* for more details:
![windows oem activation tool 3.0 windows oem activation tool 3.0](https://www.techspot.com/articles-info/1751/images/2018-11-25-image-6.jpg)
Microsoft® Volume Licensing Service Center*
#WINDOWS OEM ACTIVATION TOOL 3.0 HOW TO#
How to contact the Microsoft Volume Licensing Service Center* Having said that, we kindly recommend you contacting Microsoft Volume Licensing Support for assistance. For this purpose, we only have the Intel® VCUST Tool which works only with OA3.0. However, Intel® NUC 7th generations you are trying to install (as the Intel® NUC Kit NUC7i5BNH) supports only Windows® 10. The OA2.0 is for Windows Vista installation only. Thank you for your patience with this matter. The question is where can I get the one for OA2 support? (The OA3 key injection is not related to this topic thus needs to clarify about this one)
![windows oem activation tool 3.0 windows oem activation tool 3.0](https://i2.wp.com/up4pc.com/wp-content/uploads/2020/04/KMS-2038-Digital-Online-Activation-Suite-8.6-Latest.png)
Invalid combination of options specified on the command line.
![windows oem activation tool 3.0 windows oem activation tool 3.0](https://cf3.ppt-online.org/files3/slide/m/MjiLOTYJnGZrwIcEoKtN5Wul6zHFhUexmybaD8/slide-2.jpg)
C write chassis mfg|version|serial|asset string S write system mfg|product|version|serial|sku number|family string VCUSTW64 -OA3 -OEMID= -TABLEID= -OAData= GENERAL SYNTAX FORMAT: VCUSTW64 category. As mentioned above the VCUST tool have no OA2 support and the Windows Product Key injection is part of OA3 only.