Solution : https://service.sap.com/sap/support/notes/144595 (SAP Service marketplace login required)
Key words : 
operating system collector saposcol calls program sapntchk, directory \\localhost\saplog\prfclog exists, nt user <sid>adm, sap operating system monitor, section 'compaq disk controller', actual official ip address, operating system monitor, operating system dump, \\localhost\saploc\prfclog, saposcol log directory
Related Notes : 
       
| 688131 | Windows: missing data in ST06/OS06 | 
| 96397 | NT: No display of HW info and OS syslog in ST06 | 
| 65761 | Configuration test tool for Windows, sapntchk download |