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Surface Pro 4, ESU: Registration fails without any error
I'm getting to the window: "Registering for the extended security support." This window terminates after a few seconds. Edition Windows 10 Pro Version 22H2 Installiert am 06.10.2020...
hi Detlef_Huss here is my view, the “Registering for extended security support” window closing with no error usually points to a missing prerequisite or a silent activation issue. A few quick things to check:
Update everything first – make sure all latest Windows updates and the ESU preparation package are installed.
Network access – confirm your device can reach Microsoft activation servers (no proxy or firewall blocks).
Re-enter ESU key – open PowerShell as admin and run:
slmgr /ipk <your-ESU-key>
slmgr /ato
Check Event Viewer under Applications and Services Logs → Microsoft → Windows → Security-SPP for activation errors.
Restart and retry registration — sometimes it completes only after the next update cycle.