Which version of 8.1 is it? I found that 8.1 2016-08-02 would not run on latest Windows 10, however I took the executable from 8.1 2016-08-30, pasted it into the client folder, and then it worked.
Hello,
We also have a customer on windows who is on 2026-02-28 having the exact same error message after updating.
The title of the messagebox is in our case is: "C:\Program Files(x86)\Han...