OBS won't start

[Heavelyz]

.OBS won't start. If I try again it says it's already running (but it's not).

Tried uninstalling and reinstalling, same error
Tried deleting appdata\obs-studio folder, same error
Tried killing the obs process and restarting, same error

Obvs no log available

Windows 11...any ideas?

 

[PaiSand]

Get the latest version. https://obsproject.com/download
Now, after uninstallin, go to the C:\Program Files\obs-studio (or wherever you installed it) and delete any remaining file. Install again and see if it works.

Too bad you deleted the appdata OBS folder because in there you find the logs and crash reports.

 

[Heavelyz]

thx...will do...in meantime, pfa todays logs restored from bin

 

[Heavelyz]

aqgain thanks but "executed the process as you describe, that didn't work". Here's the logs...

 

[Heavelyz]

also, nothing was in the crash directory related to not being able to start the app. Last crash was 23rd Feb, here's that report...

 

[PaiSand]

13:46:33.333: ================================
13:46:33.333: Warning: OBS is already running!
13:46:33.333: ================================
13:46:33.333: User is now running multiple instances of OBS!

And just to make sure everthing is loaded fine, restart the computer.

 

[Heavelyz]

Thanks Pai but obvs I'm not being clear enough. No OBS GUI is presented when I attempt to start OBS.

If I try to start OBS again, it tells me that OBS is already running...but I can't navigate (e.g. ALT+TAB) to an OBS GUI.

Does that make sense?

 

[PaiSand]

Some times the proicees doesn't shut down correctly (for whaever reason) and stays on even the GUI is not present.
Do Ctrl+Shift+Esc to open task manager and close the instance from there. I saw it happening in others.

Did you added a custom dock which could be causing it? In the crash report is shown as crashed.
Is Windows up to date? Video card drivers up to date? Anything else running at the same time that could be messing with?
Check for malware. Malwarebytes is one of the best to do this, non intrusive, easy to use and unsintall once you're done.

 

[cyclemat]

First Standard procedure

1. update obs

2. update all drivers from the manufacture homepage

3. Update Bios

4. check you ram with memtest
https://www.memtest86.com/

5. Check you windows files
Start CMD as Admin
type in
dism /Online /Cleanup-Image /ScanHealth
when finished
sfc /scannow


6. have you delete or move files that you use in OBS ?
wait obs try to search the files



7. did you use plugins like OBs.live / streamelements / streamfx
delete the complete obs folder Manually.
reinstall obs dont install this plugins



8. when this not helps look in the taskmanager under processes that the obs.exe didnt run
Delte %APPDATA%\Roaming\obs-studio\global.ini

 

[Heavelyz]

Some times the proicees doesn't shut down correctly (for whaever reason) and stays on even the GUI is not present.
Do Ctrl+Shift+Esc to open task manager and close the instance from there. I saw it happening in others.

Did you added a custom dock which could be causing it? In the crash report is shown as crashed.
Is Windows up to date? Video card drivers up to date? Anything else running at the same time that could be messing with?
Check for malware. Malwarebytes is one of the best to do this, non intrusive, easy to use and unsintall once you're done.

It's not present in task manager
Don't know what a custom dock is, so unlikely to have one
Checked for malware...using malwarebytes...found 4 low level items, now quarantined. Restarted PC, same behaviour

Thank you for you kind advice so far, I will now try cyclemat's kind advice

 

[Heavelyz]

thank you

1. update obs

can't update obs frm within obs because I can't access the obs gui. However, I have uninstalled, downloaded last version and installed...same behaviour

2. update all drivers from the manufacture homepage

all drivers already up to date

3. Update Bios

BIOS already up to date

4. check you ram with memtest
https://www.memtest86.com/

will try this...but I doubt it's the memory

5. Check you windows files
Start CMD as Admin
type in
dism /Online /Cleanup-Image /ScanHealth
when finished
sfc /scannow

will try this

6. have you delete or move files that you use in OBS ?
wait obs try to search the files

No. And as stated...uninstalled, downloaded latest OBS, reinstalled

7. did you use plugins like OBs.live / streamelements / streamfx
delete the complete obs folder Manually.
reinstall obs dont install this plugins

Pretty sure I did this (i.e. all files deleted, even my own config :( ) but will try again

8. when this not helps look in the taskmanager under processes that the obs.exe didnt run
Delte %APPDATA%\Roaming\obs-studio\global.ini

yes, definitely not being shown in task manager after I call the exe once/ twice (and I get the "OBS already running" dialogue

thanks again, appreciate the help

 

[Heavelyz]

Did "4" above...it's not the memory (6hrs/ 4 cycles/ all passes/ 0 faults)

 

[Heavelyz]

tried "5" above, I got...

C:\Users\peter>dism /Online /Cleanup-Image /Scanhealth

Error: 740

Elevated permissions are required to run DISM.
Use an elevated command prompt to complete these tasks.

"Peter" is the admin so unsure how to get elevated permissions

 

[Heavelyz]

haven't completed the steps above but have found that if I kill the enc_amf_test64 via task manager, that the OBS GUI then appears (and is responsive to control)

 

[PaiSand]

haven't completed the steps above but have found that if I kill the enc_amf_test64 via task manager, that the OBS GUI then appears (and is responsive to control)

Please post this in Github Issues

Issues · obsproject/obs-studio

OBS Studio - Free and open source software for live streaming and screen recording - Issues · obsproject/obs-studio

github.com

 

[koala]

If I compare your logfile with logfiles created on my system, the next lines after "Failed to load 'en-US' text for module: 'decklink-ouput-ui.dll'"
should be looking like this:

4:51:20.098: [AMF] Unable to load 'amfrt64.dll', error code 126.
14:51:20.100: [AMF] AMF Test failed due to one or more errors.
14:51:20.100: Failed to initialize module 'enc-amf.dll'

This has to do with detecting AMD GPUs. It seems OBS chokes on AMD encoder detection for you. Since you have a Nvidia GPU built in, there is no AMD encoder of course. May be you had a AMD GPU in the past, replaced it with your Nvidia GPU, and forgot to uninstall the driver for the AMD GPU or the uninstall was not successful?

 

[Heavelyz]

Thanks all..."properly" removing the legacy AMD GPU driver fixed it perfectly. Back streaming now, happy days...thanks again

 

[starmage]

lol, sorry to post on this dead thread, but i'm experiencing the same issue. Not really tech-savvy in this way, so i'm doing my best.
I got the same 740 error Heavelyz got running the DISM into Command Prompt, but not sure where to go from here since I'm the only one using this computer.

Found a few logs. Take a peek, let me know if there's anything weird going on here?