Clear-CMClientCache.ps1
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<#
.SYNOPSIS Clear the cache content on SCCM clients. .DESCRIPTION Clear the cache content on SCCM clients using the COM object. .PARAMETER ComputerName Enter a computer name .PARAMETER CacheAgeinDays Enter a number in days of the last time cache was referenced. .PARAMETER Force Clears persisted cache items. .EXAMPLE Clear-CMClientCache -ComputerName DESKTOP01 Clears all SCCM client non-persistent cache content .EXAMPLE Clear-CMClientCache -ComputerName DESKTOP01,DESKETOP01 -CacheAgeinDays 30 -Force Clears all SCCM client cache content that hasn't been referenced in 30 days including persistent cache items. .NOTES Created by: Jason Wasser @wasserja Modified: 7/11/2017 11:43:18 AM #> function Clear-CMClientCache { [CmdletBinding(SupportsShouldProcess = $true)] param ( [string[]]$ComputerName = $env:COMPUTERNAME, [int]$CacheAgeinDays = 0, [switch]$Force ) begin { function Clean-ClientCache { param ( [int]$CacheAgeinDays, [bool]$WhatIf, [bool]$Force ) $VerbosePreference = 'Continue' Write-Verbose "Beginning clearing of SCCM Cache older than $CacheAgeinDays days" $UIResourceMgr = New-Object -ComObject UIResource.UIResourceMgr $Cache = $UIResourceMgr.GetCacheInfo() $CacheElements = $Cache.GetCacheElements() | Where-Object -FilterScript {$_.LastReferenceTime -lt (Get-Date).AddDays( - $CacheAgeInDays)} if ($CacheElements) { if ($CacheElements.Count) { Write-Verbose -Message "Found $($CacheElements.Count) cache elements on $($env:COMPUTERNAME) continuing to clear the elements in the cache." } else { Write-Verbose -Message "Found a cache element on $($env:COMPUTERNAME) continuing to clear the elements in the cache." } foreach ($Element in $CacheElements) { if ($WhatIf) { if ($Force) { Write-Verbose "What if: Forcing deletion of CacheElement with PackageID $($Element.ContentID) from $($Element.Location)" } else { Write-Verbose "What if: Deleting CacheElement with PackageID $($Element.ContentID) from $($Element.Location)" } } else { if ($Force) { Write-Verbose "Forcing deletion of CacheElement with PackageID $($Element.ContentID) from $($Element.Location)" $Cache.DeleteCacheElementEx($Element.CacheElementID, $true) } else { Write-Verbose "Deleting CacheElement with PackageID $($Element.ContentID) from $($Element.Location)" $Cache.DeleteCacheElement($Element.CacheElementID) } } } } else { Write-Verbose -Message "No cache elements found on $($env:COMPUTERNAME)" } } } process { foreach ($Computer in $ComputerName) { Write-Verbose -Message "Attempting to clear SCCM client cache on $Computer older than $CacheAgeinDays days" if ($PSBoundParameters.ContainsKey('WhatIf')) { Write-Verbose 'WhatIf detected' $WhatIf = $true if ($Force) { Write-Verbose 'Force detected' $Force = $true Invoke-Command -ComputerName $Computer -ScriptBlock ${function:Clean-ClientCache} -ArgumentList $CacheAgeinDays, $WhatIf, $Force } else { Invoke-Command -ComputerName $Computer -ScriptBlock ${function:Clean-ClientCache} -ArgumentList $CacheAgeinDays, $WhatIf } } else { Write-Verbose 'WhatIf not detected' $WhatIf = $false if ($Force) { Write-Verbose -Message 'Force detected' $Force = $true Invoke-Command -ComputerName $Computer -ScriptBlock ${function:Clean-ClientCache} -ArgumentList $CacheAgeinDays, $WhatIf, $Force } else { Invoke-Command -ComputerName $Computer -ScriptBlock ${function:Clean-ClientCache} -ArgumentList $CacheAgeinDays } } } } end { } } |