Oh s**t, tragic network swallow up my replies! I reply your again:
First of all, Thanks for your solutions! I'll base on your suggest and Microsoft's indication by your link to try to solve this issue on follow sentence:
1. Run Dism tool to check up system files
2. Run sfc /scannow to recover damaged system files (if it has)
3. Reinstall Fences if the issue still appear
Maybe this method will be more effective and directly, because my Fences just be installed only two months, and this issue has never happened before. It's fresh new.
I'll keep watching on whether this issue will occur again and report back to you in few days.
By the way, about your other questions:
1. My OS is win10 pro 22H2
2. No application has changed explorer.exe. But I often using Coreldraw and Photoshop when this issue occurs. Are they related?
Whatever, Thanks for your help again. Hope Fences get more better!