Windows 10: explorer.exe error

"Class not registered" message and start button and Cortana also are not functioning. How can I fix it?

Tried restarting the explorer. But doesn't work.

:)

 

some .exe files hang


In the last 48 hours, some .exe files do not execute. If started from explorer, explorer hangs. No error messages. These files run on another Win 10 machine. Nothing obvious in the event viewer. I note that *.exe file cannot be deleted when the system is in this state. I must reboot to regain access to the .exe file. sfc /scannnow shows no errors.

Any suggestions?

 

Explorer exe application error

Thank you for your help, but im sorry the problem still there, after i did the 2nd step, the scan shows if there are corrupted files, but it can't fix it and only logged the result, and the memory diagnostics says there are no error.

Also, there is a notification says

"explorer.exe - system warning

Unknown hard error"

 

Explorer exe application error

Hi,

The error code regarding Explorer.exe application could be due to corrupted or missing system files on your computer. That said, you may need to run a tool to check for missing or corrupted system files. We suggest that you follow the troubleshooting steps
that was provided by Deepika Gowda on October 9, 2015 through this
link. Ending the Windows Explorer process and creating a new one are
also given as troubleshooting regarding the issue.

Let us know if the troubleshooting methods helps.