how to delete log file caused by OPC UA discovery server after stopped it

hi all,

I have a virtual machine of windows server 2008 R2 Enterprise ,installed on it OPC UA discovery server service ,this service caused c drive to reach full disk size a lot of times ,I stopped it ,but I want to delete log file caused from log process of this service without affecting other services on this virtual machine.

note : tried to delete (opcualds.log) file caused archiving process on the server to stopped.

configuration file content (ualds.ini),log section:

[Log]
# Log System: syslog (system log), file (custom log file)
LogSystem = file
# LogFile: path to logfile. This is only required for LogSystem=file.
LogFile = C:\ProgramData\OPC Foundation\UA\Discovery\opcualds.log
# Log Level: error, warn, info, debug
LogLevel = debug

                                            thanks