Unintall previous runtime engine

[JoshMonkey]

I noticed that there are older NI Labview run-time engines 6.1, 7.0 and 7.1 installed. Are the 2 older versions safe to be uninstalled?

[Dr._Imad]

The runtime engines are independent, they coexist without a conflict. you may unistall one without afftecting the operation of the others, or applications that requires the other runtime engines

[Jeremy_L]

In addition, if you ever need those runtime engines again, you can download them free from NI's website.