Hi, There is not specific fix for explorer crashing as that it connected to so much things.
I would suggest, you do chkdsk /r first to fix some system file errors at boot;
Then run sfc /scannow to fix any system file corruption errors;
Then try defragging the said volume.
If those are not working, then it is better to resort to System Restore to a previous date.
Probably those thing would fix your problems.
try and then report