The link you provided is for the 1040 programs. Turbotax Business is for corporate, partnership and trust returns.
Try this link
https://ttlc.intuit.com/turbotax-support/en-us/help-article/update-products/manually-update-turbotax...
still have issues contact support because every computer system is a little different
5am-5pm Pacific Time (8-8 Eastern) Monday - Friday
https://support.turbotax.intuit.com/contact
800-446-8848
the only other DIY that I suggest is a complete uninstall, reboot and reinstallation with no guarantees it will work.
