Disable any antivirus or firewall software and try updating again. If H&R Block Tax Software still will not update on your Mac after following these steps, then your antivirus or firewall software might be preventing the updates from installing. Try updating the H&R Block Tax Software again.To repair these issues, click the Repair Disk Permissions button. When the scan is complete, you can review any of the permissions issues it found in the window in the middle of the Disk Utility window.(This could take a few minutes.) On Mac OS 10.13 and 10.14, click the First Aid button. Choose the Macintosh HD and click Verify Disk Permissions.Click Applications on the left side of the screen.Click the Macintosh HD icon on the desktop.If H&R Block Tax Software will not update on your Mac computer, there are a couple of options you can try to solve the problem.įirst, you can try running a Disk Utility.