As of December 2016 there are two builds of software available on the U-MARQ webshop.
The 1538 build is specifically for Serial controllers, this is applicable if using a USB to Serial or straight Serial connection
The 1540 build is specifically for USB controllers with a straight USB cable connection between machine and PC.
If installing the software on to a newly purchased Windows 10 computer, it may be necessary to install full Windows updates.
This process can take some time and will be dependent upon internet connection.
Unfortunately we are unaware of a method of definitively determining the status of updates but suggest leaving the PC for a period, then using the Windows Restart process to install required updates, before installing the engraving software.