Thank you for confirming and your help.
Before posting, please read how to report bug or request support effectively.
Bug reports without an attached log file are usually useless.
Do you mean that 5.17.5 installer works, but 5.17.6 installer does not? What if you add
/log=C:\some\path\setup.logto its command-line? Does it produce any log file?
/log=C:\some\path\setup.log to its command-line? Does it produce any log file?