Question Can't open project, "child process exited with code 3221225595" error

So after reinstalling windows I can' open any of my projects. Looking at the logs this is the only error there is. I tried a clean re-installation of Unity Hub and Editors (also tried other editors) to no avail. Found this solution online: "delete the "Library","Logs","obj" and "Temp" folders" and it didn't work. I also tried running Unity Hub with or without administrator privileges and made no difference

Trying to create a new project doesn't work either, a project is added to Unity Hub. Looking at the log before trying to open the project I find the same error. When I try to run it after it completes I get the error that it can't find the path specified and indeed looking at my files the path doesn't exist (so to my understanding the project was never created) most likely to be expected since it errored during creation.

Here is a link for the error when opening projects: https://pastebin.com/qa1SF4kD
Here is a link for the error when creating projects: https://pastebin.com/urDMKWMQ

Hub Version is: 3.5.0
Unity Version is: 2022.3.4f1 (LTS)
Platform: Windows 10 Pro (64-bit)

 

I suspect permission issues. Those folders will still be using the old system's permissions and the new user may not be included or the new installation doesn't understand the old system's "user account" group setting.

Check the permissions of the F:\Unity folder. Make sure your current user account has full access and that these permissions are inherited down to child folders and files. When you do that, be sure to have all Unity editor instances and the Hub closed, especially if you installed them in that root folder. Updating the permissions may take a couple minutes, if not hours, depending on the number of folders and files.

 

My installation of Unity Hub and Unity editors are completely new and on the C drive. Only thing I have on the F drive are my projects. But even when trying to make a new project on the C drive (so nothing is under the old system's user) it still fails. I will check in the meantime to see if the new user has permission or not and give it a shot. Thanks, will update when I am done !

Edit:
For clarification, F drive doesn't have a windows installation and it wasn't the drive I had windows on before, it's just a secondary HDD that I use for storage and not clutter my SSD (C, That currently has windows installed and is brand new (the previous windows installation was on a different drive that is no longer in the system)

 

After trying many things, making sure permissions were set correctly, to all users and to my user specifically, even changes the location of the projects it didn't work. I still get the same issue

 

12 Days later no replies and still no fix. Maybe this is bug that Unity needs to look into ? How can I have the error code and find no fixes this is ridiculous

 

I am terribly sorry, I just saw your message as I was talking to unity support (to no avail sadly...) trying to fix this issue and then gave up. I am trying to still solve it with newer versions of editors and unity hub and still get the same problems. The error "0xC000007B" I get it when I try to run the "Unity 2022.3.4f.1.exe" since I don't have a standalone "Unity.exe" anywhere, not on my install, not on my projects, not on the unity hub files or anything.

 

The path is:
C:\Program Files\Unity\Hub\Editor\2021.3.28f1\Editor\Unity.exe
I have a shortcut with all my game dev .exe and each version of the editor I download created a shortcut to the desktop from that exact path and renames the shortcut from Unity.exe to Unity "editor version".exe

All unity editor versions are downloaded through Unity Hub

 

I tried both ways , I always get the same thing. Meaning The error "0xC000007B"

 

This is the error that I get when running the editor exe : https://imgur.com/a/QTbHupc
About the other errors, when trying to run a project I get no pop-up and I found the errors through the log.
Creating a new project also has no pop-up but running the new project gives me this : https://imgur.com/a/cTUZ3ED
After re-testing everything the error codes are all the same.

I can't find any error in the Event Viewer, I looked for errors in the last 24hours (since I just re-run everything to test) and I found no Source for unity or anything related and under source "Application Error" again nothing related to unity. I have not used this many times but I don't think I missed something, unless I should be looking under a different source or not only looking for errors ? Please let me know

 

Yeah I can, here is a link to google drive for the file, it's in DMP format https://drive.google.com/file/d/1k--u3iFZqbhTmUy0imiprjt8IPrLA66i/view?usp=sharing

 

I think I did everything correctly. Hitting F5 in visual studio I got am Application Error and this is a pastebin of the output https://pastebin.com/3ksZ6E1c

 

Hello and sorry for my late reply, I've run into some medical issues.
I remember downloading some missing dlls for errors I was running into before, they were msvcrp100, msvcp100, msvcr120, msvcp120. By the time I posted this question I had completely forgotten sorry for not including it, I changed them a week before posting here. I think i tried downloading them from DLL-files as well as having a friend of mine with windows 10 send me theirs so I am guessing all of them might have a problem ?
Running the command I get

Code (csharp):

1. 'dumpbin' is not recognized as an internal or external command,
2. operable program or batch file.

I am trying to find what component or tool I am missing to install it but google has been of no help so far, if you can please let me know so I can run the command and post the results

Thank you for all the help !

 

I don't seem to have a dumpbin file in that directory, I checked all SDK_VER just to make sure.

I only added the 4 dlls I mentioned above, I did that as they were missing after I had already installed unity and there was a problem with it so for some reason it didn't download them automatically.
After download the redistributables error still occurs, msvcrp100 and msvcp100 were installed but msvcrp120 and msvcp120 were not. Any ideas why ?

 

Still no luck...

 

I have a lot of .exe there like "accevent.exe","certmgr.exe","graphedt.exe","mftrace.exe","wsdcodegen.exe" etc. kinda hard to list them all.

I deleted all the problematic dlls, installed the 2 redistributables you provided through your links. Since there are 2 I installed them in chronological order.
First time I picked repair on both installers since I already had a version installed (I guess, repair was an option so I tried).
Second time uninstalled, completely reinstalled the first redistributable and picked repair on the second.
Lastly uninstalling and completely reinstalling the second redistributable.
I also gave this a shot : https://www.microsoft.com/en-us/download/details.aspx?id=30679
Either installing it 1st, 2nd or 3rd or installing it on it's own. None of all these worked and I keep getting the same errors. msvcrp120 and msvcp120 dlls are still missing and were never installed.

This i the output with gflags enabled: https://pastebin.com/HbikxzK8

(Quick sidenote, when I try to open "Unity.exe" through visual studio I can only do it with administrator permissions, i don't know if this changes anything. My guess is it doesn't but I am not 100% sure either)

 

Yep, both of the versions are removing and adding files to the System32 folder.

I tried it once again to confirm and still no msvcr120 and msvcp120 dlls but I did just noticed these:
msvcr120_clr0400.dll
msvcp120_clr0400.dll

Yeah I am using the vcredist_x64.exe.

 

Certainly, I am not entirely sure which log to grab, I think this is the one, I have a lot of them but from the name this is the last one that got executed

 

Weird, last one I did was the 2013 one. I just reinstalled the 2013 once again and here is the log

 

When installing it I get a prompt to repair my installation which I did. msvcr120 and msvcp120 are finally installed. After all this time it seems like it's FINALLY working now ! I will do some more testing, open more of my projects, try some older ones, play test a little and update if anything comes up. Thank you so much for the time and effort you put into this, I really appreciate it !