For Windows 10 versions prior to OS Build , this cmdlet requires access to a Microsoft symbol server, and log decoding must be run from a Windows 10 version earlier than Logs from Windows 10, version onward do not require a Microsoft symbol server, and need to be decoded from Windows 10, versions or higher. This command merges and converts Windows Update trace files. Specifies an array of paths of Windows Update. The default value for this parameter is the Windows Update trace file directory for the current device.
The acceptable values for this parameter are:. Indicates that this cmdlet forces the Windows Update Agent on the current device to flush all of its traces to. This process stops the Update Orchestrator and Windows Update services. Running this cmdlet with this parameter requires administrative credentials. You can start Windows PowerShell with administrative credentials by using the Run as administrator command.
The default value is WindowsUpdate. Specifies the file type that Get-WindowsUpdateLog uses for temporary files that are created during intermediate processing.
By default, Get-EventLog gets logs from the local computer. To get logs from remote computers, use the ComputerName parameter. You can use the Get-EventLog parameters and property values to search for events. The cmdlet gets events that match the specified property values.
The results may not be accurate. Use the Get-WinEvent cmdlet instead. This example displays the list of event logs that are available on the local computer. The names in the Log column are used with the LogName parameter to specify which log is searched for events. The Get-EventLog cmdlet uses the List parameter to display the available logs. The Newest parameter returns the five most recent events. This example shows how to find all of the sources that are included in the most recent entries in the System event log.
The Newest parameter selects the most recent events. Group-Object uses the Property parameter to group the objects by source and counts the number of objects for each source.
The NoElement parameter removes the group members from the output. The Sort-Object cmdlet uses the Property parameter to sort by the count of each source name. The Descending parameter sorts the list in order by count from highest to lowest.
The EntryType parameter filters the events to show only Error events. The Source parameter specifies the event property. This command gets the events from the System event log on three computers: Server01, Server02, and Server The ComputerName parameter uses a comma-separated string to list the computers from which you want to get the event logs. This command gets all the events in the System event log that contain a specific word in the event's message.
It's possible that your specified Message parameter's value is included in the message's content but isn't displayed on the PowerShell console. The Message parameter specifies a word to search for in the message field of each event.
The Newest parameter selects the most recent event object. The Source parameter specifies the application name, Outlook. The objects are sent down the pipeline to the Where-Object cmdlet. The objects are sent down the pipeline to the Select-Object cmdlet. Select-Object uses the Property parameter to select the properties to display in the PowerShell console. The event objects are sent down the pipeline to the Group-Object cmdlet.
Every Windows system administrator is probably familiar with the Windows Event Log. Using this cmdlet in PowerShell allows sysadmins to parse lots of events at once across many computers at once. It frees sysadmins up from clicking around in the Event Viewer trying to figure out just the right filter to use and to determine where precisely that critical event is stored.
In that case, we need to figure out all of the event logs that are available on our local computer. We do that by using the command Get-EventLog -List. There are dozens of other event logs showing up under Applications and Services logs in the Event Viewer.
Now that we know all of the events logs available, we can now read events within that event log. Maybe I want to see all events in the Application event log. To get those events, I need to specify the LogName parameter with Get-EventLog and the cmdlet will oblige by returning all events in that event log. In actuality, Get-EventLog returns 16 of them.
The reason you only see six is due to PowerShell formatting rules which define the output. Below is an example of the actual output found by piping Get-EventLog to Select-Object and selecting all of the properties.
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