2016SP3 admin install uninstalls itself after almost completing install

So it looks like a shed load of DLLs are not registering properly during the install.

We have had no end of issues! After installing all the prerequisites including vcredist 2012 x32 (go figure its an x64 product) the install almost completes then without error just uninstalls everything.

there is an error 1603 and listed above it a shed load of dll's that don't seem to register.

Anybody got any clues? I don't want to be installing 60 copies of this manually.

thanks

AJ

SolidworksAdministration