I'm experiencing a very odd behavior installing R2019 -- setup.exe just won't start, on startup just fires a small message box, the caption says "error" and the message just says "setup:", that's it. No explanation.
I'm running Win 10 64-bit.
Tried P3 media, P2, PLM express -- same result.
Tried installing from a DVD disc -- same result.
Tried turning OFF Windows Defender -- same result.
I have R21 through R2018 installed on my laptop, never seen that before. Tested install for the R2018 media again -- starts just fine.
Anyone has any idea what's going on?