When I start Minecraft Preview for Windows 26.0.27 in China Mainland, it crashes and says, “Minecraft Preview 目前在你的帐户中不可用。请确保你已登录到 Microsoft Store，然后重试。如果需要，可以使用以下错误代码: 0x803F8001”
However, when I switch the region of PC to the Central Africa, it started properly.
It was similar when I download Minecraft Preview. I can’t do it in China Mainland, but I can do it in other countries or regions.
However, it didn’t happen to Minecraft for Windows 1.21.132.
Thank you for your report!
However, this issue is Invalid
This is a technical support issue; this site is for bug reports only. We do not have the resources to provide you with technical support.
Please contact Community Support for assistance and refer to this ticket by providing a link.
https://support.xbox.com/en-GB/help/errors/error-code-0x803F8001
Quick Links:
📓 Bug Tracker Guidelines -- 💬 Community Support -- 📧 Mojang Support (Technical Issues) -- 📧 Microsoft Support (Account Issues) -- 📓 Project Summary -- ✍️ Feedback and Suggestions -- 📖 Game Wiki