November 4, 2024 at 07:15AM
Microsoft acknowledged bugs affecting Windows Server 2025 installations and causing Blue Screen of Death (BSOD) issues for systems with over 256 logical processors. They are working on a fix for the upcoming monthly update. In the meantime, users can limit logical processors to 256 or fewer as a workaround.
### Meeting Notes Takeaways:
1. **Confirmed Issues**: Microsoft has identified bugs affecting Windows Server 2025 with more than 256 logical processors, leading to installation failures and Blue Screen of Death (BSOD) errors.
2. **Symptoms**: Users may experience:
– Installation or upgrade processes hanging or failing.
– Extended server startup and restart times (up to three hours or more).
– BSOD when launching, restarting, or using apps.
3. **Inconsistency of Issues**: These problems do not occur consistently across all affected devices.
4. **Identifying Impact**: To check if a system is impacted, use the Task Manager (CTRL+SHIFT+ESC) to see if more than 256 logical processors are shown on the Performance tab.
5. **Workaround**: Until a fix is released in an upcoming monthly update, administrators can limit the number of logical processors to 256 or fewer by adjusting server settings:
– Restart the server and enter UEFI Setup.
– Adjust the number of cores per socket to ensure total logical processors do not exceed 256.
– Restart the server afterward.
6. **Installation Language Notification**: Users may see English text during installation using certain media (CD/USB) despite selecting a different language when using the Multilanguage User Interface (MUI) on builds 25100.1742 and later.
7. **Windows Server 2025 Availability**:
– General availability announced.
– Free 180-day trial available through the Microsoft Evaluation Center.
– Introduces features like next-gen Active Directory, hotpatching, and SMB over QUIC alternative ports.
8. **Historical Context**: The first Windows Server 2025 build was released in January as part of the Windows Insider program, marking it as Microsoft’s latest Long-Term Servicing Channel (LTSC) release.