Bei mir ist der Wert auf 0 gesetzt, funktioniert.
Hast Du ein SQL Server Management Studio auf dem WSUS installiert? Falls ja, dann kopiere das hier in eine Abfrage und führe sie aus:
CREATE INDEX [IXMF_ivwApiUpdateRevision_IsLatestRevision] ON [SUSDB].[dbo].[ivwApiUpdateRevision] ([IsLatestRevision]) INCLUDE ([RevisionID], [IsHidden], [IsLocallyPublished], [IsMandatory]);
CREATE INDEX [IXMF_ivwApiUpdateRevision_IsLatestRevision_IsHidden] ON [SUSDB].[dbo].[ivwApiUpdateRevision] ([IsLatestRevision], [IsHidden]) INCLUDE ([LocalUpdateID], [EffectiveArrivalTime], [RevisionID]);
CREATE INDEX [IXMF_ivwApiUpdateRevision_UpdateID_IsLatestRevision_IsHidden] ON [SUSDB].[dbo].[ivwApiUpdateRevision] ([UpdateID], [IsLatestRevision], [IsHidden]);
CREATE INDEX [IXMF_tbDeadDeployment_TargetGroupID_TargetGroupTypeID_LastChangeNumber] ON [SUSDB].[dbo].[tbDeadDeployment] ([TargetGroupID], [TargetGroupTypeID],[LastChangeNumber]);
CREATE INDEX [IXMF_tbDeadDeployment_TargetGroupTypeID_LastChangeNumber] ON [SUSDB].[dbo].[tbDeadDeployment] ([TargetGroupTypeID], [LastChangeNumber]) INCLUDE ([DeploymentID], [RevisionID], [TargetGroupID], [UpdateID], [RevisionNumber]);
CREATE INDEX [IXMF_tbDeadDeployment_TargetGroupTypeID_LastChangeNumber_UpdateType] ON [SUSDB].[dbo].[tbDeadDeployment] ([TargetGroupTypeID],[LastChangeNumber], [UpdateType]) INCLUDE ([DeploymentID], [RevisionID], [TargetGroupID], [UpdateID], [RevisionNumber]);
CREATE INDEX [IXMF_tbDeadDeployment_TargetGroupTypeID_TimeOfDeath_ActionID] ON [SUSDB].[dbo].[tbDeadDeployment] ([TargetGroupTypeID],[TimeOfDeath], [ActionID]) INCLUDE ([RevisionID]);
CREATE INDEX [IXMF_tbDeployment_ActionID_TargetGroupTypeID] ON [SUSDB].[dbo].[tbDeployment] ([ActionID], [TargetGroupTypeID]) INCLUDE ([RevisionID]);
CREATE INDEX [IXMF_tbDeployment_DeploymentStatus_TargetGroupTypeID_LastChangeNumber_UpdateType] ON [SUSDB].[dbo].[tbDeployment] ([DeploymentStatus], [TargetGroupTypeID],[LastChangeNumber], [UpdateType]) INCLUDE ([GoLiveTime], [RevisionID], [TargetGroupID]);
CREATE INDEX [IXMF_tbDeployment_TargetGroupTypeID] ON [SUSDB].[dbo].[tbDeployment] ([TargetGroupTypeID]) INCLUDE ([ActionID], [RevisionID]);
CREATE INDEX [IXMF_tbDeployment_TargetGroupTypeID_ActionID] ON [SUSDB].[dbo].[tbDeployment] ([TargetGroupTypeID],[ActionID]) INCLUDE ([RevisionID]);
CREATE INDEX [IXMF_tbDeployment_TargetGroupTypeID_LastChangeNumber] ON [SUSDB].[dbo].[tbDeployment] ([TargetGroupTypeID],[LastChangeNumber]) INCLUDE ([DeploymentID], [RevisionID]);
CREATE INDEX [IXMF_tbDeployment_TargetGroupTypeID_LastChangeNumber_UpdateType] ON [SUSDB].[dbo].[tbDeployment] ([TargetGroupTypeID],[LastChangeNumber], [UpdateType]) INCLUDE ([DeploymentID], [DeploymentStatus], [ActionID], [GoLiveTime], [Deadline], [DownloadPriority], [IsAssigned], [RevisionID], [TargetGroupID], [IsLeaf], [Priority], [IsFeatured], [AutoSelect], [AutoDownload], [SupersedenceBehavior]);
CREATE INDEX [IXMF_tbDeployment_TargetGroupTypeID_UpdateType_LastChangeNumber] ON [SUSDB].[dbo].[tbDeployment] ([TargetGroupTypeID], [UpdateType],[LastChangeNumber]) INCLUDE ([DeploymentID], [ActionID], [Deadline], [RevisionID], [TargetGroupID], [Priority]);
CREATE INDEX [IXMF_tbEventInstance_EventNamespaceID_TimeAtServer] ON [SUSDB].[dbo].[tbEventInstance] ([EventNamespaceID],[TimeAtServer]) INCLUDE ([EventOrdinalNumber]);
CREATE INDEX [IXMF_tbFileOnServer_ActualState] ON [SUSDB].[dbo].[tbFileOnServer] ([ActualState]) INCLUDE ([FileDigest], [RowID], [TimeAddedToQueue]);
CREATE INDEX [IXMF_tbLocalizedPropertyForRevision_LocalizedPropertyID] ON [SUSDB].[dbo].[tbLocalizedPropertyForRevision] ([LocalizedPropertyID]);
CREATE INDEX [IXMF_tbProperty_CreationDate_ReceivedFromCreatorService] ON [SUSDB].[dbo].[tbProperty] ([CreationDate], [ReceivedFromCreatorService]) INCLUDE ([RevisionID], [PublicationState]);
CREATE INDEX [IXMF_tbProperty_ExplicitlyDeployable_UpdateType] ON [SUSDB].[dbo].[tbProperty] ([ExplicitlyDeployable],[UpdateType]) INCLUDE ([RevisionID]);
CREATE INDEX [IXMF_tbProperty_PublicationState] ON [SUSDB].[dbo].[tbProperty] ([PublicationState]) INCLUDE ([RevisionID]);
CREATE INDEX [IXMF_tbProperty_PublicationState_ReceivedFromCreatorService] ON [SUSDB].[dbo].[tbProperty] ([PublicationState],[ReceivedFromCreatorService]) INCLUDE ([RevisionID], [ExplicitlyDeployable], [UpdateType]);
CREATE INDEX [IXMF_tbRevision_IsLatestRevision] ON [SUSDB].[dbo].[tbRevision] ([IsLatestRevision]) INCLUDE ([RevisionID], [LocalUpdateID]);
CREATE INDEX [IXMF_tbRevision_IsLeaf] ON [SUSDB].[dbo].[tbRevision] ([IsLeaf]) INCLUDE ([RevisionID], [LocalUpdateID]);
CREATE INDEX [IXMF_tbRevision_IsMandatory] ON [SUSDB].[dbo].[tbRevision] ([IsMandatory]) INCLUDE ([LocalUpdateID], [RevisionID]);
CREATE INDEX [IXMF_tbRevision_State] ON [SUSDB].[dbo].[tbRevision] ([State]) INCLUDE ([LocalUpdateID], [RevisionID]);
CREATE INDEX [IXMF_tbRevisionInCategory_CategoryID_Expanded] ON [SUSDB].[dbo].[tbRevisionInCategory] ([CategoryID], [Expanded]) INCLUDE ([RevisionID]);
CREATE INDEX [IXMF_tbRevisionInCategory_Expanded] ON [SUSDB].[dbo].[tbRevisionInCategory] ([Expanded]) INCLUDE ([RevisionID], [CategoryID]);
CREATE INDEX [IXMF_tbRevisionSupersedesUpdate_SupersededUpdateID] ON [SUSDB].[dbo].[tbRevisionSupersedesUpdate] ([SupersededUpdateID]);
CREATE INDEX [IXMF_tbUpdate_IsHidden] ON [SUSDB].[dbo].[tbUpdate] ([IsHidden]) INCLUDE ([LocalUpdateID], [UpdateID]);
CREATE INDEX [IXMF_tbUpdate_IsHidden_ImportedTime] ON [SUSDB].[dbo].[tbUpdate] ([IsHidden],[ImportedTime]) INCLUDE ([LocalUpdateID], [UpdateID]);
CREATE INDEX [IXMF_ivwApiUpdateRevision_IsLatestRevision_IsHidden_IsLocallyPublished] ON [SUSDB].[dbo].[ivwApiUpdateRevision] ([IsLatestRevision], [IsHidden], [IsLocallyPublished]);
CREATE INDEX [IXMF_tbDeployment_UpdateType_LastChangeNumber] ON [SUSDB].[dbo].[tbDeployment] ([UpdateType],[LastChangeNumber]) INCLUDE ([RevisionID]);
CREATE INDEX [IXMF_tbFileOnServer_ActualState_DSSRequestedDownload] ON [SUSDB].[dbo].[tbFileOnServer] ([ActualState], [DSSRequestedDownload]) INCLUDE ([FileDigest], [RowID]);
CREATE INDEX [IXMF_tbFileOnServer_DSSRequestedDownload] ON [SUSDB].[dbo].[tbFileOnServer] ([DSSRequestedDownload]) INCLUDE ([FileDigest]);
Anschließend sollte vieles in der Konsole flotter laufen.
Und natürlich das Script zum Reindxierung immer wieder laufen lassen, am besten täglich. Löscht Du denn auch die Synchronisierungen regelmäßig? Falls nein, auch die können dir in die Quere kommen. Hier gibt es ein Script für das SQL Server Managment Studio:
(Du musst Dich Einloggen oder Registrieren um Multimediadateien oder Links zu sehen).