You are getting below error message while at Execution phase in SUM.
Severe error(s) occurred in phase MAIN_SWITCH/SUBMOD_SWITCH_BAS/WINSRV_REINST!
Last error code set:
Action 'install' for DCOM service failed, see phase log for details: Cannot
create a file when that file already exists.
Solution
This solution is taken from SAP Note 2179539 – SHDINST_OS: Action ‘install’ for DCOM service failed.
Ensure there the following criteria shall be met,
- No other SAPup.exe processes are running.
- SAPServiceSID password maintain in Windows services are correct.
Update the SAPServiceSID user password provided to SUM with the correct password. Go to the \SUM\abap\bin directory and execute this command .\SAPup set allpwd gt=scroll.
.\SAPup set allpwd gt=scroll
*** Start setting parameters at 2021/02/14 07:49:24
4 ETQ399 Starting dialog 'Passwords' at 20210214074926.
=========== Required System Passwords ===========
Enter the password for SAP user "DDIC" in client 000:
User "DDIC" password [***************]:
Enter the password for the operating system account "itsiti\sapservicesid":
OS account password [********************]: ****************
===================================================================
4 ETQ399 Dialog finished at 20210214074938.
*** Parameter(s) updated ***
Still getting the same error?
Launch the Windows services and try to restart the SAP service (main instance). If you are getting error message “service is marked for deletion”.
Restart your Windows operating system.
You may resume the upgrade after the Windows is up and running.
