Hello Peter,

Sorry to hear you are having difficulty running WebSite X5 on Windows 10.

Please open only one thread per topic.  I will close this one now so that you can continue on your original post, which will keep all the relevant information in one place:

https://helpcenter.websitex5.com/post/125590

The Incomedia support staff do not normally work weekends, so the earliest that you might get an official response would be Monday 16th.

In the meantime, if you could copy the information on the 'Details' tab of the error message and paste it here, then that will almost certainly help to speed up troubleshooting.

Best wishes,

Paul