When I try to use Olympus to run Celeste with Everest, it shows me the startup mini-screen, and then it closes, only to not open Celeste (even if all mods are disabled). I'm on Windows, using a Steam installation to launch Celeste. I have verified the installation and installed Everest 4896 (stable, alpha). The permissions to edit the game's folder are all enabled. I have restarted my computer before making this post. I tried also looking for similar problems here, but couldn't find anything related to it. 
#Celeste not launching with Everest
33 messages · Page 1 of 1 (latest)
There are two types of logs; crash logs and log.txt.
Crash logs are generated when you see an "Oooops! :(" crash handler screen. They contain extra information which regular logs don't.
To access those, there's a button that says Open log file folder, which should take you to where they're stored. Make sure to grab the latest one!
For more subtle issues, non-crashing problems or other miscellaneous stuff, log.txt is checked. To find it, do the following:
- Open Olympus.
- Press the Manage button in the Installations panel on Olympus' main menu. (it's to the left)
- Press Browse to open the Celeste folder.
- Look for the file named exactly
log.txtinside that folder. Do not graberror_log.txtor look into theLogHistoryfolder as those are not thelog.txtyou're looking for.
Your username may sometimes show up in those logs. If you're concerned about that, remember to censor it before uploading. Every text editor should have a replace function, commonly opened with Ctrl+H.
log.txt is empty.
you're grabbing olympus' log
are you sure you're in the right folder
no :(
are you sure, check thoroughly
else try opening command prompt and entering tasklist /fi "IMAGENAME eq Celeste.exe"
nothing, really
even with that command?
is it AVE'ing this early???
can you edit everest-launch.txt and put --console at the end
save the file and launch everest again
yes, I tried it, the response is "no data encountered with these specifications"
it'll open a black window, pay close attention to it right before it closes
hm
I think I got it

what the fuck.
System.Runtime.InteropServices.SEHException (0x80004005): External component has thrown an exception.
does your celeste really hate internet connection or what the hell
0x80004005 is a code i already know which is extremely unhelpful: E_FAIL (Unspecified error.)
@tawny depot i have no clue how this can happen
somehow the entirety of c# just dies dramatically by making an http connection
Seems to be related to Quic, so related to HTTP3
So if I had to guess, this is either your Windows install being fucked up, or some AV / external program messing with stuff
av here meaning antivirus
ok, so I did format my PC
Everest is running normally now, thanks guys! 
shame it had to end up like this but i hope it went painlessly 