This portable app does not work on Windows 10, im afraid... i tried it on Windows 10, and get the app in my task manager, but does not show on screen... also, i let it run for a few minutes, and still had no loading screen... before you ask... I clicked the actual app icon in the "program" subfolder and... guess what, it worked almost instantly... so the portable app Libre office loaders have problems in Windows 10... wish i knew how to redirect the portable apps program to open the app itself, not the launcher... in case it wasnt entirely clear, I clicked on the app not the launcher, although I tried that as well... could it be my fonts in my data folder??? And another app, gimp, did have a working launcher, so I know it's your launcher somehow... also... the app does seem to work in Windows 7... this was originally in a different thread Google took me to, and was told, not necessarily as nicely as i woulld like, that it was in the wrong post... so again... please forgive my previous post, as I'm new here...
P.s. someone told me that running the app directly is basically running an installed version and not recommended, so save your breath, cause it's not my PC, just a computer that I have access to use in discourse of my duties, in church, and therefore will not, and probably don't have permission to, install apps to... it also has the old and deprecated open office installed, which doesn't work the way we want when microsoft office 360 fails keycheck due to wifi issues... hence my having this portable app that I love...