Hi Darsh,
Thanks for your post. Please make sure ADSync service account can log on locally, as a service.
- Select Start, enter gpedit.msc in the search box, and then press Enter to open the Local Group Policy Editor snap-in.
- In the console tree, under Computer Configuration, expand Windows Settings > Security Settings > Local Policies, and then select User Rights Assignment.
- Verify that the ADSync service account is added for the following policy settings:
Log on as a service
Reference. https://learn.microsoft.com/en-us/troubleshoot/entra/entra-id/user-prov-sync/services-sync-not-start
Best Regards,
Ian Xue
If the Answer is helpful, please click "Accept Answer" and upvote it.