Windows Server Troubleshooting - Log Files

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Windows maintains a number of log files that can be helpful with troubleshooting. These files are stored at %SystemRoot%\Debug

Example content in NetSetup.log showing events related to joining a domain
02/11 11:30:02 NetpValidateName: checking to see if 'newdomain.com' is valid as type 4 name
02/11 11:30:05 NetpCheckNetBiosNameNotInUse for 'NEWDOMAIN.COM' [MACHINE] returned 0x0
02/11 11:30:08 NetpCheckDomainNameIsValid [ NON-Existant ]for 'NEWDOMAIN.COM' returned 0x0
02/11 11:30:08 NetpValidateName: name 'NEWDOMAIN.COM' is valid for type 4
 
Example content in DCPROMO.log showing events of the promotion process
02/11 11:31:10 [INFO] Promotion request for domain controller of new domain
02/11 11:31:10 [INFO] DnsDomainName newdomain.com
...
02/11 11:33:04 [INFO] The attempted domain controller operation has completed
02/11 11:33:04 [INFO] DsRolepSetOperationDone returned 0
 
Example content in DCPROMOUI.log showing events of the promotion process
dcpromoui D38.A44 0000 opening log file C:\WINDOWS\debug\dcpromoui.log
dcpromoui D38.A44 0001 C:\WINDOWS\system32\dcpromo.exe
dcpromoui D38.A44 0002 file timestamp 11/18/2002 07:00:00.000
dcpromoui D38.A44 0003 local time 02/11/2003 18:51:45.406
dcpromoui D38.A44 0004 running Windows NT 5.2 build 3718 (BuildLab:3718.dnsrv.021114-1947) i386
...
dcpromoui D38.A44 00E3 Enter ControlSubclasser::UnhookWindowProc
dcpromoui D38.A44 00E4 exitCode = 0
dcpromoui D38.A44 00E5 closing log