Windows 10 Security update (KB4579311), breaks Blender. (Won't fully launch) #81823

New Issue

Matthew Perkins · 2020-10-19T02:46:39+02:00

Matthew Perkins commented

2020-10-19 02:46:39 +02:00

System Information
Operating system: Windows 10 18941.508
Graphics card: Nvidia GeForce RTX 2060

Blender Version
Broken: I tired to launch both of the current versions of 2.90.1 and 2.83 LTS; both failed to launch.
Worked: None.

Short description of error

Windows asked me to install a Security update: (KB4579311)
After doing so, no versions of Blender would launch properly.
They would launch to the point of showing a grey window, but the UI would never load.

Exact steps for others to reproduce the error
Based on the default startup or an attached .blend file (as simple as possible).

I would say it is caused by the Windows update. I uninstalled it using some command line instructions I found online,
as it would not allow me to uninstall it from the updates ui (Remove updates, etc.)

After removing it, blender once again works fine. .Just wanted to warn the devs, and hopefully this will help a resolution to be found quickly.

**System Information** Operating system: Windows 10 18941.508 Graphics card: Nvidia GeForce RTX 2060 **Blender Version** Broken: I tired to launch both of the current versions of 2.90.1 and 2.83 LTS; both failed to launch. Worked: None. **Short description of error** Windows asked me to install a Security update: (KB4579311) After doing so, no versions of Blender would launch properly. They would launch to the point of showing a grey window, but the UI would never load. **Exact steps for others to reproduce the error** Based on the default startup or an attached .blend file (as simple as possible). - I would say it is caused by the Windows update. I uninstalled it using some command line instructions I found online, as it would not allow me to uninstall it from the updates ui (Remove updates, etc.) After removing it, blender once again works fine. .Just wanted to warn the devs, and hopefully this will help a resolution to be found quickly.

Matthew Perkins commented

2020-10-19 02:46:39 +02:00

Added subscriber: @mcolinp

Matthew Perkins changed title from ~~Windows 10 Security update (KB4579311), breaks blende. (Won't fully launch)~~ to Windows 10 Security update (KB4579311), breaks Blender. (Won't fully launch)

2020-10-19 02:47:04 +02:00

Jesse Yurkovich commented

2020-10-19 03:21:44 +02:00

Added subscriber: @deadpin

Jesse Yurkovich commented

2020-10-19 03:21:44 +02:00

I'm not able to confirm with a newer release of Windows here -- the "2004" or 20H1 build:
Operating system: Windows-10-10.0.19041-SP0 64 Bits
Graphics card: GeForce GTX 1070 with Max-Q Design/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 451.67

I have the same security update and 2.90.1 and latest master work fine for me:

I'm not able to confirm with a newer release of Windows here -- the "2004" or 20H1 build: Operating system: Windows-10-10.0.19041-SP0 64 Bits Graphics card: GeForce GTX 1070 with Max-Q Design/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 451.67 I have the same security update and 2.90.1 and latest master work fine for me: ![sec_issue.png](https://archive.blender.org/developer/F9014263/sec_issue.png)

Matthew Perkins commented

2020-10-19 03:41:03 +02:00

Makes me wonder if it’s not tied to RTX cards?

Matthew Perkins commented

2020-10-21 03:19:32 +02:00

I'm not certain it was connected to the Windows Security update, but that was the only thing that changed, when it started acting up. I still cannot get Blender to launch, and I was in the middle of a project someone is waiting on me for. VERY FRUSTRATING. So far I tried uninstalling Blender 2.90.1 then reinstalling it. I tried rolling back Nvidia's Studio Drivers. I tried using CCleaner to clean the Registry. Still, nothing.

Matthew Perkins commented

2020-10-21 03:28:19 +02:00

Ok, so something weird just happened . . .

I took this screenshot of 2.90.1 failing to launch, using 'Snipping Tool'. after I saved this screenshot, it finally loaded. Yet then after closing it and trying again . . . it of course doesn't load . . .

Ok, so something weird just happened . . . I took this screenshot of 2.90.1 failing to launch, using 'Snipping Tool'. after I saved this screenshot, it finally loaded. Yet then after closing it and trying again . . . it of course doesn't load . . . ![BlenderLoading.PNG](https://archive.blender.org/developer/F9025401/BlenderLoading.PNG)

Leul Mulugeta commented

2020-10-21 05:41:52 +02:00

Added subscriber: @Leul

Leul Mulugeta commented

2020-10-21 05:41:52 +02:00

in Windows Update, in Update History, there is an option to Uninstall Updates, Maybe you can try that if your on your own personal computer

Richard Antalik commented

2020-10-21 08:17:07 +02:00

Added subscriber: @iss

Richard Antalik commented

2020-10-21 08:17:07 +02:00

Changed status from 'Needs Triage' to: 'Needs User Info'

Richard Antalik commented

2020-10-21 08:17:07 +02:00

Please download build from https://builder.blender.org/download/ and try to start Blender using blender_debug_log.cmd file. After crash happens, upload created files.

Please download build from https://builder.blender.org/download/ and try to start Blender using `blender_debug_log.cmd` file. After crash happens, upload created files.

Matthew Perkins commented

2020-10-22 03:32:13 +02:00

So I did try uninstalling the security update previously. After I did that, 2.90.1 launched successfully once, then failed to launch again every try after. I did just now download the 2.91 build, which also failed to launch. I am attaching the log output text here.

blender_debug_output.txt

So I did try uninstalling the security update previously. After I did that, 2.90.1 launched successfully once, then failed to launch again every try after. I did just now download the 2.91 build, which also failed to launch. I am attaching the log output text here. [blender_debug_output.txt](https://archive.blender.org/developer/F9031787/blender_debug_output.txt)

Matthew Perkins commented

2020-10-22 04:18:27 +02:00

Ok, so I found some developments. Anyone who has this problem can fix it by adjusting "Exploitation Settings" In Widows Security. It seems something in the updated security update, seems to regard Blender as a threat. I have never seen these new settings shown in the pictures attached below. I tried this on 2.90.1, and it worked. On 2.91, it worked. On 2.83 (LTS), it DID NOT work. But at least I can use 2.90.1 as I was previously.

Step 1:

Step 2:

Step 3:

Step 4:

Ok, so I found some developments. Anyone who has this problem can fix it by adjusting "Exploitation Settings" In Widows Security. It seems something in the updated security update, seems to regard Blender as a threat. I have never seen these new settings shown in the pictures attached below. I tried this on 2.90.1, and it worked. On 2.91, it worked. On 2.83 (LTS), it DID NOT work. But at least I can use 2.90.1 as I was previously. Step 1: ![Windows Exploitation Exception1.PNG](https://archive.blender.org/developer/F9031989/Windows_Exploitation_Exception1.PNG) Step 2: ![Windows Exploitation Exception2.PNG](https://archive.blender.org/developer/F9032018/Windows_Exploitation_Exception2.PNG) Step 3: ![Windows Exploitation Exception3.PNG](https://archive.blender.org/developer/F9032021/Windows_Exploitation_Exception3.PNG) Step 4: ![Windows Exploitation Exception4.PNG](https://archive.blender.org/developer/F9032026/Windows_Exploitation_Exception4.PNG)

Matthew Perkins commented

2020-10-22 04:21:13 +02:00

This comment was removed by @mcolinp

*This comment was removed by @mcolinp*

Matthew Perkins commented

2020-10-22 04:21:36 +02:00

This comment was removed by @mcolinp

*This comment was removed by @mcolinp*

Matthew Perkins commented

2020-10-22 04:22:06 +02:00

This comment was removed by @mcolinp

*This comment was removed by @mcolinp*

Matthew Perkins commented

2020-10-24 18:29:46 +02:00

So the 'Fix" I described earlier, still does not result in a permanent fix in my case. It seems whatever changed in the KB4579311 security update, has caused some major havoc, only for a select number of users. I guess I got lucky, if you want to call it that . . .

Here is an article that seems to indicate Microsoft acknowledges there are some issues with this update, yet they don't specify to what extent those issues exist, and how may users are effected.

Windows10-october-update-breaking-pcs

So the 'Fix" I described earlier, still does not result in a permanent fix in my case. It seems whatever changed in the KB4579311 security update, has caused some major havoc, only for a select number of users. I guess I got lucky, if you want to call it that . . . Here is an article that seems to indicate Microsoft acknowledges there are some issues with this update, yet they don't specify to what extent those issues exist, and how may users are effected. [Windows10-october-update-breaking-pcs ](https://www.techworm.net/2020/10/windows-10-october-update-breaking-pcs.html)

Richard Antalik commented

2020-10-27 05:25:52 +01:00

Changed status from 'Needs User Info' to: 'Archived'

Richard Antalik closed this issue

2020-10-27 05:25:52 +01:00

Richard Antalik self-assigned this 2020-10-27 05:25:52 +01:00

Richard Antalik commented

2020-10-27 05:25:52 +01:00

Thanks for looking into this. Unfortunately I don't think there is anything we can do here, if the problems are caused by OS. I can see that I have KB4579311 installed myself, and I haven't noticed any problem though.

I will have to close this report, and refer you to one of the community websites: https://www.blender.org/community/ where you can seek help and discuss possible solutions.

Thanks for looking into this. Unfortunately I don't think there is anything we can do here, if the problems are caused by OS. I can see that I have KB4579311 installed myself, and I haven't noticed any problem though. I will have to close this report, and refer you to one of the community websites: https://www.blender.org/community/ where you can seek help and discuss possible solutions.

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Windows 10 Security update (KB4579311), breaks Blender. (Won't fully launch) #81823