Solution : https://service.sap.com/sap/support/notes/539903 (SAP Service marketplace login required)
Key words :
hkey_local_machine->system->currentcontrolset->services-> sap<sid>_<sysnr>, terms r3up sapupgrade recovery windows reason, sap sap<sid>_<sysnr> service, \usr\sap\put\exe\sapstartsrv, \usr\sap\put\bin\r3env, 'orig shd profile' entry, windows nt/windows 2000, 'uninstall service + unregister, fatal hardware error, relevant procedure depends
Related Notes :
| 417670 | Addnl information on resetting upgrade as of Release 6.10 |