Hello
Thank you for posting in Q&A forum.
The srv.sys error during the promotion to a Domain Controller (DC) can be caused by several factors.
Here are some steps you can try to troubleshoot:
- Ensure there are no conflicting software applications or services running on the server. Sometimes, third-party software can interfere with the promotion process.
- Memory and Hardware Check:
Run a memory test to check for faulty RAM:
mdsched.exe
Check the health of your hard drive using the chkdsk command:
chkdsk /f /r
- Check the Event Viewer for any related errors or warnings that might give more insight into the cause of the srv.sys error.
- If possible, try setting up a new VM from clean installation media, fully patch it, and then attempt to promote it to a DC. Ensure the VM is fully updated before promotion.
- Verify that the domain and forest functional levels are compatible with Windows Server 2016. Although you mentioned the functional level is 2012, ensure there are no lingering compatibility issues.
I hope the information above is helpful.
If you have any questions or concerns, please feel free to let us know.
Best Regards,
Daisy Zhou
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