I have a windows 10 computer that was working until last Friday. During the day, it had some kind of problem and was restarted. When it restarted, Explorer wouldn't start. If I try to do it via Task Manager, it starts, and keeps spawning additional explorer tasks, with the task bar flashing, until I use Taskkill to stop all explorer tasks. I can start explorer on a folder. I have tried sfc /scannow and dism, with no luck. I have tried a repair install, no luck. I can't get into settings to try windows update, as when I use Start MS-settings: in administrator command prompt, I get a MS-Settings: Class Not Registered error.
In the event viewer, I get messages like this:
Faulting application name: Explorer.EXE, version: 10.0.19041.1586, time stamp: 0xc1380384
Faulting module name: ucrtbase.dll, version: 10.0.19041.789, time stamp: 0x2bd748bf
Exception code: 0xc0000409
Fault offset: 0x000000000007286e
Faulting process id: 0x1e08
Faulting application start time: 0x01d84e9629da89d7
Faulting application path: C:\WINDOWS\Explorer.EXE
Faulting module path: C:\WINDOWS\System32\ucrtbase.dll
Report Id: 398d9298-4778-49d1-8144-91b7b4bed73c
Faulting package full name:
Faulting package-relative application ID:
Faulting application name: sihost.exe, version: 10.0.19041.746, time stamp: 0x0ead4601
Faulting module name: KERNELBASE.dll, version: 10.0.19041.1566, time stamp: 0x0833f2d4
Exception code: 0x80270234
Fault offset: 0x000000000010b362
Faulting process id: 0x117c
Faulting application start time: 0x01d84e9616dd6dd3
Faulting application path: C:\WINDOWS\system32\sihost.exe
Faulting module path: C:\WINDOWS\System32\KERNELBASE.dll
Report Id: 350e2ba5-6ef1-486c-8466-35e5b7f300c4
Faulting package full name:
Faulting package-relative application ID:
The BITS service failed to start. Error 0x80004005.
Faulting application name: pcdrsysinfosoftware.p5x, version: 6.0.7303.400, time stamp: 0x613065a6
Faulting module name: ucrtbase.dll, version: 10.0.19041.789, time stamp: 0x2bd748bf
Exception code: 0xc0000409
Fault offset: 0x000000000007286e
Faulting process id: 0x1d08
Faulting application start time: 0x01d84e9122229d84
Faulting application path: C:\Program Files\Dell\SupportAssistAgent\PCD\SupportAssist\pcdrsysinfosoftware.p5x
Faulting module path: C:\WINDOWS\System32\ucrtbase.dll
Report Id: a8b2e6a0-af12-4e8f-a020-ab6ee0a2f57c
Faulting package full name:
Faulting package-relative application ID:
The SysMain service terminated with the following error:
There are no more endpoints available from the endpoint mapper.
Any ideas?