Error while cleaning up unrolled log files during handler initialization: HEXC
The process cannot access the file because it is being used by another process
You can try using https://technet.microsoft.com/en-us/sysinternals/bb545046 Process Explorer to find out the PID of the process locking your file. Run it, press CTRL-f and the name of the file being locked. You can test by locking a file with "notepad > myfile.txt" and then in Process Explorer search for myfile.txt and it should give you the PID of notepad.
The process cannot access the file because it is being used by another process
You can try using https://technet.microsoft.com/en-us/sysinternals/bb545046 Process Explorer to find out the PID of the process locking your file. Run it, press CTRL-f and the name of the file being locked. You can test by locking a file with "notepad > myfile.txt" and then in Process Explorer search for myfile.txt and it should give you the PID of notepad.