What is this Faulting application/module?

Question

I received this today and I don't know what is means and I don't know if I should do any system file check commands to fix it or anything else to try to fix the problem.

Faulting application name: sihost.exe, version: 10.0.26100.7309, time stamp: 0xbbb3c46a

Faulting module name: ucrtbase.dll, version: 10.0.26100.7019, time stamp: 0x55eee9bf

Exception code: 0xc0000409

Fault offset: 0x00000000000a4ace

Faulting process id: 0x153C

Faulting application start time: 0x1DC71E9ADFB3855

Faulting application path: C:\WINDOWS\system32\sihost.exe

Faulting module path: C:\WINDOWS\System32\ucrtbase.dll

Report Id: 9bca701a-26ed-42e8-96f1-ade87ca876bc

Faulting package full name:

Faulting package-relative application ID:

Answer 1

Hello, I'm Quinn and here to help!

This error happens when Windows Shell runs, but a system DLL like ucrtbase.dll got corrupted. It’s often caused by Windows updates, bad system files, conflicting apps/drivers, or a damaged user profile. You can run a system check to fix this.

1. Press Win + S, type cmd, and select Run as administrator.
2. Type and enter these commands: sfc /scannow DISM /Online /Cleanup-Image /RestoreHealth
3. Once finished, restart your PC

If it happens rarely, it’s usually fine. If it happens often, these steps are a good way to troubleshoot.