For clarification - IBM setup would detect embedded spaces in path name (even if you properly quoted directory path when invoking setup.exe (quoting names with special characters is standard operating procedure for Windows):

How did you started setup.exe ?
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Jan Nelken
Db2 (LUW) DBA
Open for job
Katowice or Krakow
+48 783 109 863
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Original Message:
Sent: Sun May 25, 2025 10:31 PM
From: WARREN MARIO RODRIGUES
Subject: upgrade from db2 11.1.7 to db2 11.5 fp1 - setup.exe doesnot launch
Hi guys
I downloaded the latest fixpak for 11.5 and was able to complete the installation successfully.
Just to share ... I hit the same error as earlier when trying to launch the setup.exe . It just doesn't do anything
upon further scrutiny, I discovered that the unzip path has a space in the folder name. After I renamed the folder to remove the space (IBM db2v11.5 to IBM_db2v11.5 ) , the setup.exe works properly.
A basic mistake caused few days delay. lesson learnt
Thanks
Warren
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WARREN MARIO RODRIGUES
Original Message:
Sent: Thu May 22, 2025 09:59 PM
From: WARREN MARIO RODRIGUES
Subject: upgrade from db2 11.1.7 to db2 11.5 fp1 - setup.exe doesnot launch
Thanks Jan and Scot for the responses
I will try again with the latest fixpak for 11.5 . (unfortunately my Windows version doesnot meet the pre-requisites for the latest 12.1 version )
Will watch out for any prompt in case something is blocking
Will update here
Thanks
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WARREN MARIO RODRIGUES
Original Message:
Sent: Thu May 22, 2025 01:30 AM
From: WARREN MARIO RODRIGUES
Subject: upgrade from db2 11.1.7 to db2 11.5 fp1 - setup.exe doesnot launch
Hello
I need to upgrade from db2 11.1.7 to 11.5 on windows 64-bit
I downloaded the universal fixpak - v11.5.5fp1_ntx64_universal_fixpack
When I run the setup.exe, it doesnot launch the UI ... there is no action .
how do I troubleshoot this ? Could it be due to wrong installer ?
Regards
Warren
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WARREN MARIO RODRIGUES
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