Fail to uninstall SQLServer 2005

I can't uninstall a default instance of SQLServer 2005.

i have instaled a MSDE2000 then i uninstall it and when a try to uninstall the default instance of SQLServer2005 a have a error the log following:

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Instance Name = MSSQLSERVER
Trying to find install through Instance Name
Install Type = 1
If possible, determine action
Failed to determine installSkuId due to property load failure.SKU is set to SKU_EXPRESS.
Source File Name: datastore\cachedpropertycollection.cpp
Compiler Timestamp: Wed Oct 26 16:37:20 2005
Function Name: CachedPropertyCollection::findProperty
Source Line Number: 130
----------------------------------------------------------
Failed to find property "InstallSku" {"SetupStateScope", "", ""} in cache
Source File Name: datastore\propertycollection.cpp
Compiler Timestamp: Wed Oct 26 16:37:21 2005
Function Name: SetupStateScope.InstallSku
Source Line Number: 44
----------------------------------------------------------
No collector registered for scope: "SetupStateScope"
Machine = EMILIO, Article = WMIServiceWin32OSWorking, Result = 0 (0x0)
Machine = EMILIO, Article = WMIServiceWin32CompSystemWorking, Result = 0 (0x0)
Machine = EMILIO, Article = WMIServiceWin32ProcessorWorking, Result = 0 (0x0)
Machine = EMILIO, Article = WMIServiceReadRegWorking, Result = 0 (0x0)
Machine = EMILIO, Article = WMIServiceWin32DirectoryWorking, Result = 0 (0x0)
Machine = EMILIO, Article = WMIServiceCIMDataWorking, Result = 0 (0x0)
Machine = EMILIO, Article = XMLDomDocument, Result = 0 (0x0)
Failed to determine installSkuId due to property load failure.SKU is set to SKU_EXPRESS.
Source File Name: datastore\cachedpropertycollection.cpp
Compiler Timestamp: Wed Oct 26 16:37:20 2005
Function Name: CachedPropertyCollection::findProperty
Source Line Number: 130
----------------------------------------------------------
Failed to find property "InstallSku" {"SetupStateScope", "", ""} in cache
Source File Name: datastore\propertycollection.cpp
Compiler Timestamp: Wed Oct 26 16:37:21 2005
Function Name: SetupStateScope.InstallSku
Source Line Number: 44
----------------------------------------------------------
No collector registered for scope: "SetupStateScope"
Machine = EMILIO, Article = Processor, Result = 0 (0x0)
Machine = EMILIO, Article = PhysicalMemory, Result = 0 (0x0)
Machine = EMILIO, Article = DiskFreeSpace, Result = 0 (0x0)
Machine = EMILIO, Article = OSVersion, Result = 0 (0x0)
Machine = EMILIO, Article = OSServicePack, Result = 0 (0x0)
Machine = EMILIO, Article = OSType, Result = 0 (0x0)
Machine = EMILIO, Article = AdminShare, Result = 0 (0x0)
Machine = EMILIO, Article = PendingReboot, Result = 0 (0x0)
Machine = EMILIO, Article = IEVersion, Result = 0 (0x0)
Machine = EMILIO, Article = DriveWriteAccess, Result = 0 (0x0)
Machine = EMILIO, Article = COMPlus, Result = 0 (0x0)
Machine = EMILIO, Article = ASPNETVersionRegistration, Result = 0 (0x0)
Machine = EMILIO, Article = MDAC25Version, Result = 0 (0x0)
Machine = EMILIO, Article = SKUUpgrade, Result = 0 (0x0)

HOW I CAN RESOLVED THE PROBLEM THKS,

Emilio Ferreira