How to switch from labview 2018 32 bit to 64 bit

[PULSE.Wannabe]

Anyone know how to change labview bitness from 32 to 64? Current bitness is 32 and I already install both bitness

[altenbach · Accepted solution]

Save and close everything open in LabVIEW 32bit, then open it in LabVIEW 64bit (different program!).

[billko · Accepted solution]

Also, you need to explicitly open correct LabVIEW, because double-clicking on a LabVIEW file will open the last LabVIEW application.  Even choosing "open with" and the correct LabVIEW will actually still open the last LabVIEW that was opened.