Programs do not start, explorer crashes, if only working with primary Laptop display. I need to extend to second display to have programs work.

  • Thread starter Thread starter Joachim Loeffel
  • Start date Start date
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Joachim Loeffel

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Since the latest Windows 10 2004 upgrade I experience severe issues with Windows or Programs not working anymore because


a) explorer/desktop constantly dies after login (screen flashes, everything locked except ctr-alt-del, ctl-shift-esc or alike

taskmanger shows explorer.exe constantly dying and many instances in suspended state ...

- after a while other programs die, too


If I get the system operational I experience additional problems

b) some programs do not start anymore, e.g. MS Word, failing silently or others, e.g. Settings fail with

'this file doesn't have an app associated with it', e.g. ms-settings:personalization-background


I can work around it by plugging in an external monitor!

I also created a new account which doesn't have the problem.

It is only with my primary account.


I found out, that this happens only, if I am working with PC screen only.

If I work with extended screen or secondary screen only I don't have a problem.


So far I tried everything I could find in the forums to try to solve the explorer crash loop issue:

1) sfc /scannow, DISM /Online /Cleanup-Image /CheckHealth, /ScanHealth, /RestoreHealth

2) disable onedrive

3) delete HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\BannerStore

4) delete thumbcaches directory C:\Users\me\AppData\Local\Microsoft\Windows\Explorer

5) disable Enhanced Windows Biometric Security in BIOS

(Microsoft acknowledges that Windows 10 KB4568831 update is crashing Lenovo ThinkPads)

6) changed Screen scale and layout

7) disabled / repaired / reinstalled security and MS office suite


Nothing helped. I expect there is something cached in my primary account that causes addressing outside the 'screen area'?


I still have to work with the external monitor to avoid falling into the trap.


Is there anything else I could check or try before I give up my primary account and switch over to my new profile?


Thank you


PC: Lenovo X1 extreme 2nd gen - 3840 x 2160

Display: Samsung U32R59x - 3840 x 2160



Microsoft Windows [Version 10.0.19042.630]
C:\WINDOWS\system32>sfc /scannow
Beginning system scan. This process will take some time.
Beginning verification phase of system scan.
Verification 100% complete.
Windows Resource Protection did not find any integrity violations.

C:\WINDOWS\system32>DISM /Online /Cleanup-Image /CheckHealth​

Deployment Image Servicing and Management tool
Version: 10.0.19041.572
Image Version: 10.0.19042.630
No component store corruption detected.
The operation completed successfully.​

C:\WINDOWS\system32>DISM /Online /Cleanup-Image /ScanHealth​

Deployment Image Servicing and Management tool
Version: 10.0.19041.572
Image Version: 10.0.19042.630
[==========================100.0%==========================] No component store corruption detected.
The operation completed successfully.​

C:\WINDOWS\system32>DISM /Online /Cleanup-Image /RestoreHealth​

Deployment Image Servicing and Management tool
Version: 10.0.19041.572
Image Version: 10.0.19042.630
[==========================100.0%==========================] The restore operation completed successfully.
The operation completed successfully.​

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