A startup crash can occur when the machine.config has the following entry:

<NetFx40_LegacySecurityPolicy enabled="true"/>

If that's the case, set enabled to false:

<NetFx40_LegacySecurityPolicy enabled="false"/>

To locate your machine.config, check out this StackOverflow article:


Should you still experience startup crashes, feel free to open a support ticket:


Note: this applies to Royal TS V5.x or lower.