14926 unusable - Explorer.exe crashing every few seconds - Still happening on 14931! Fixed in 14936!

After upgrading my Surface Book from the prior insider build to 14926 it is now unusable.

Explorer.exe is crashing every few seconds. In event viewer I found this was logged:

"Explorer crashing Faulting module path: C:\WINDOWS\System32\pnidui.dll"

Ironically if I dock the machine and run only on an external monitor explorer quits crashing and I can use it. At this point I will have to only use it in docked mode and wait for an update.

== Update 9/27/16 ==

If you have a machine running an older build of windows 10 (I have anniversary update on another machine) you can copy 2 files to fix this problem:

c:\windows\explorer.exe

c:\windows\system32\pnidui.dll

I copied these files to a temporary directory on my machine and then booted into a safe mode command prompt to replace them. After rebooted everything seems fine.

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Performing a reset, though somewhat painful, solved the problem for me.
Thanks, Bill

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Yes - yesterday

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Given I can run this build while docked I think I'll try to hobble along with it as is until a new build or workaround comes out.

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One way I've found to prevent the crashing is to remove the Cortana folder in c:\windows\systemapps, I added it into c:\windows\systemapps.bak that I made (In case I want it back for whatever reason)

This does however break the search bar but I've found my system to be a lot more usable. It still hangs sometimes but it's much better than before. You may need to take ownership of the folder before it lets you move it.

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I tried to do that but it was complaining about files being in use (and I've had Cortana turned off) and didn't spend any more time on trying to do it.

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One other weird thing about this.

As I mentioned if I plug into the dock and run external monitors (and not the built-in display) it stops crashing. Well, today while in docked mode I made a VPN connection the crashing started again. As soon as I disconnect the VPN connection explorer stops crashing.

Event Viewer is showing that both Explorer & Cortana are crashing:

Fault bucket , type 0
Event Name: MoAppCrash
Response: Not available
Cab Id: 0
Problem signature:
P1: Microsoft.Windows.Cortana_1.8.0.14926_neutral_neutral_cw5n1h2txyewy
P2: praid:CortanaUI
P3: 10.0.14926.1000
P4: 57d4bed2
P5: combase.dll
P6: 10.0.14926.1000
P7: 57d4be3b
P8: 800706be
P9: 000000000002c4d7
P10:

AND

Fault bucket , type 0
Event Name: APPCRASH
Response: Not available
Cab Id: 0
Problem signature:
P1: explorer.exe
P2: 10.0.14926.1000
P3: 57d4c535
P4: pnidui.dll
P5: 10.0.14926.1000
P6: 57d4bf53
P7: c0000005
P8: 0000000000003bff
P9:
P10:

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i was able to move those files after loading in safe mode with command prompt.

That did not help anyway. I restored previous version of Windows as the result....

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Update on the crashing when starting VPN--I used ShellExView (http://www.nirsoft.net/utils/shexview.html) to disable non-MSFT extensions and now it doesn't crash when on VPN.

It does still crash when not docked and thus this Surface Book is still stuck as a desktop until MSFT can see fit to address this with a new build.

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I updated the subject to indicate this is still happening on build 14931.

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Last updated February 2, 2021 Views 330 Applies to: