Seem similar to LibreOffice instable sous Windows 11
Every time I try to start libreoffice it crashes when the progress bar on the splash at about 50% (difficult to say). On the Windows application log I get error 0xc0000409 on ucrtbase.dll.
In safe mode, still crashes. Removed the profile directory from AppData, still crashes (we have network domain profiles, could it be an issue?). Installed the latest VC2019 redistributable (I think that’s where urcrtbase.dll comes from) but the crash persists. Even did a manual Windows update… (the machine was freshly restored, too)
Libreoffice 6 works fine, by the way. Any idea on how to proceed?