Unable to clear cahe permanently though manually deleted cache files

Question

I removed ccmcache manually by using shift delete as the cache size is full
Though its free, I am getting error message,
The content download
cannot be performed because there is not enough available space in cache or the
disk is full
I had used powershell script but no luck its only deleting any folders present in ccmcache.
How can we clear the cache though the files are not present in ccmcache
$UIResourceMgr = New-Object -ComObject UIResource.UIResourceMgr
$Cache = $UIResourceMgr.GetCacheInfo()
$CacheElements = $Cache.GetCacheElements()
foreach ($Element in $CacheElements)
        $Cache.DeleteCacheElement($Element.CacheElementID)

Answer 1

Manually going to Control panel to delete is disabled in our organization
I started using a powrshell script but it started deleting the cache..but couple of machines, I am getting error message as below. Other its working fine
in folder location C:\windows\ccmcache\17
Exception calling "DeleteCacheElement" with "1" argument(s): "Exception from HRESULT: 0x87D01203"
Script
$UIResourceMgr = New-Object -ComObject UIResource.UIResourceMgr
$Cache = $UIResourceMgr.GetCacheInfo()
Write-Host "The total Cache size = $($Cache.TotalSize)"
Write-Host "The total Cache free size before execution of script= $($Cache.FreeSize)"
Write-Host "The total Cache used size before execution of script = $(($Cache.TotalSize) -($Cache.FreeSize))"
$CacheElements = $Cache.GetCacheElements()
foreach ($Element in $CacheElements)
        Write-Host "Deleting CacheElement with PackageID $($Element.ContentID)"
        Write-Host "in folder location $($Element.Location)"
 If (!(Test-Path $($Element.Location)))
   md $($Element.Location)
Write-Host " folder created successfully"
       $Cache.DeleteCacheElement($Element.CacheElementID)
$UIResourceMgr = $null
$Cache= $null
$Element = $null
$UIResourceMgr = New-Object -ComObject UIResource.UIResourceMgr
$Cache = $UIResourceMgr.GetCacheInfo()
Write-Host "The total Cache size = $($Cache.TotalSize)"
Write-Host "The total Cache free size after execution of script= $($Cache.FreeSize)"
Write-Host "The total Cache used size after execution of script = $(($Cache.TotalSize) -($Cache.FreeSize))"
$UIResourceMgr = $null
$Cache= $null
$Element = $null