Base table or view already exists: 1050 Table 'requredfile' already exists

I am upgrading from 1.7.9 to 1.8.1. I am running the current CMS on a Windows 7 Pro x64 so I am unable to use Docker. I have followed all the steps to install without Docker and was able to get to the Xibo Upgrade page. It successfully has run through steps 1 to 49. Now at step 50 Upgrade XMDS - Part 1 I get the error SQLSTATE[42S01]: Base table or view already exists: 1050 Table ‘requiredfile’ already exists

If that table already exists (which it does according to the error message), you can safely skip that step

I also should have added that I tried to skip the step but get a HTTP error 405.0 - Method Not Allowed

Detailed Error Information
Module WebDAVModule
Notification MapRequestHandler
Handler WebDAV
Error Code 0x00000000
Requested URL http://localhost:80/xibo/index.php
Physical Path C:\inetpub\wwwroot\xibo\web\index.php
Logon Method Anonymous
Logon User Anonymous