BizHawk won't start on Windows 10.

[mrtmaxim]

It worked fine before, but after an update 1809 EmuHawk.exe just won't open.

[Sappharad]

Microsoft pulled the 1809 update because it was deleting people's files.
https://www.zdnet.com/article/microsoft-pulls-windows-10-october-update-version-1809/

Have you tried re-installing the prerequisite installer and re-downloading BizHawk? It's possible something you needed got deleted by the updater.

[mrtmaxim]

Yes I have, but without result.

I tried bizhawk after the recent update and didn't have any issues. What exactly happen when you open it? (an explanation or a screenshot would be useful)

[mrtmaxim]

The point is that nothing happens. BizHawk process just appears in Task Manager for a moment and that's all.

[Sappharad]

Open "Event Viewer" (open the start menu and start typing) and look at the error message. If it's not obvious, then paste the error here.

[mrtmaxim]

[NarryG]

Have you updated your gpu drivers since you updated? Without digging into the code, a dx9 exception screams a compatibility issue (assuming you reinstalled the prereqs to ensure dx9 into place)

[mrtmaxim]

I have an old radeon hd 5870, so I haven't updated gpu drivers recently. I've reinstalled the prereqs several times.

[zeromus]

This can be caused by having a garbage slimdx installed in system32 containing a specific bug which was fixed years ago now. Delete any slimdx found anywhere on your system that isn't in a subdirectory of a games-ish software.