I have been trying to install the 2k3 SP1 update to my SBS server. I keep getting Access is Denied on the install. I researched the error with Microsoft KB, and the fix they give doesn't apply to me. I am posting the end of the service pack log file. 781.766: Copied file: c:\winnt\ServicePackFiles\ServicePackCache\i386\reminst.inf 781.766: Copied file: C:\WINNT\system32\pidgen.dll 781.797: Copied file: C:\WINNT\system32\dpcdll.dll 781.875: Copied file: c:\winnt\cluster\resrcmon.exe 781.906: Copied file: c:\winnt\cluster\mqclus.dll 781.953: Copied file: c:\winnt\cluster\debugex.dll 781.984: Copied file: c:\winnt\cluster\clussvc.exe 782.078: Copied file: c:\winnt\cluster\clusres.dll 782.172: Copied file: c:\winnt\cluster\cluadmin.exe 782.266: Copied file: c:\winnt\cluster\cluadmex.dll 782.313: Copied file: c:\winnt\cluster\clnetrex.dll 782.391: Copied file: c:\winnt\cluster\clnetres.dll 782.547: Copied file: c:\winnt\cluster\clcfgsrv.inf 782.547: Copied file: c:\winnt\cluster\clcfgsrv.dll 782.656: Copied file: c:\winnt\cluster\cladmwiz.dll 782.797: Copied file: C:\WINNT\system32\spool\DRIVERS\W32X86\3\unires.dll 782.906: Copied file: C:\WINNT\system32\spool\DRIVERS\W32X86\3\unidrvui.dll 783.016: Copied file: C:\WINNT\system32\spool\DRIVERS\W32X86\3\unidrv.dll 783.109: Copied file: C:\WINNT\system32\spool\DRIVERS\W32X86\3\ttyui.dll 783.156: Copied file: C:\WINNT\system32\spool\DRIVERS\W32X86\3\ttyres.dll 783.188: Copied file: C:\WINNT\system32\spool\DRIVERS\W32X86\3\tty.dll 783.234: Copied file: C:\WINNT\system32\spool\DRIVERS\W32X86\3\pscript5.dll 783.453: Copied file: C:\WINNT\system32\spool\DRIVERS\W32X86\3\pscript.ntf 783.609: Copied file: C:\WINNT\system32\spool\DRIVERS\W32X86\3\ps5ui.dll 783.703: Copied file: C:\WINNT\system32\spool\DRIVERS\W32X86\3\pclxl.dll 783.781: Copied file: C:\WINNT\system32\spool\DRIVERS\W32X86\3\pcl5eres.dll 783.906: Copied file: C:\WINNT\system32\spool\DRIVERS\W32X86\3\hpcabout.dll 783.969: Copied file: C:\WINNT\system32\spool\DRIVERS\W32X86\3\fxswzrd.dll 784.016: Copied file: C:\WINNT\system32\spool\DRIVERS\W32X86\3\fxsui.dll 784.094: Copied file: C:\WINNT\system32\spool\DRIVERS\W32X86\3\fxstiff.dll 784.156: Copied file: C:\WINNT\system32\spool\DRIVERS\W32X86\3\fxsres.dll 784.250: Copied file: C:\WINNT\system32\spool\DRIVERS\W32X86\3\fxsdrv.dll 784.328: Copied file: C:\WINNT\system32\spool\DRIVERS\W32X86\3\fxsapi.dll 785.031: Error installing assemblies, GLE=5 790.828: Unregistration of sprecovr successful 790.828: Access is denied. 804.672: Message displayed to the user: Access is denied. 804.672: User Input: OK 804.672: Service Pack 1 installation did not complete. Select 'OK' to undo the changes that have been made. 807.531: Message displayed to the user: Service Pack 1 installation did not complete. Select 'OK' to undo the changes that have been made. 807.531: User Input: OK 807.531: Starting process: C:\WINNT\$NtServicePackUninstall$\spuninst\spuninst.exe /~ -u -z 1157.828: Software Update Rollback has completed with return code 0xbc2. This rollback requires a reboot. 1157.828: Service Pack 1 installation did not complete. Windows Server 2003 has been partially updated and may not work properly. 1165.906: Message displayed to the user: Service Pack 1 installation did not complete. Windows Server 2003 has been partially updated and may not work properly. 1165.906: User Input: OK 1165.906: Update.exe extended error code = 0x5 1165.906: Update.exe return code was masked to 0x643 for MSI custom action compliance. Shutdown Initiated in Self Extractor ***