Have same issues and seems like no solution found till now.
https://ww.wp.xz.cn/support/topic/iis-localhost-wordpress-setup-error-skip-to-content/#post-9627887
https://core.trac.ww.wp.xz.cn/ticket/42362
Not sure whether we have any solution on internet at present to this issue. I believe, It is certainly not DB user and access issue based on above forum threads.
Same problem for me too. Its a fresh installation and I am stuck to move forward. help much appreciated.
