Hello Frans,

In this situation you could try the following:

• Install with anti-virus disabled
• Install with firewall disabled
• Install on clean boot
• Install as Administrator (right-click on setup icon)
• Bypass any proxy servers

If you still experience difficulty then you can download the updated program file (10.0.6.31) by visiting the 'Download' section of your profile (drop-down menu at top-right of this screen), then you can install over the top of your existing version.  Reboot your PC, and run the setup file whilst X5 is closed.  Right-click on the program icon and select 'Run as administrator'  -  you won't lose any data.

This is a preferred way of updating the program if other issues (antivirus, firewall, etc) prevent you from updating within the program itself.

Kind regards,

Paul