{"id":1413,"date":"2011-05-04T10:19:25","date_gmt":"2011-05-04T14:19:25","guid":{"rendered":"http:\/\/jdhitsolutions.com\/blog\/?p=1413"},"modified":"2011-05-04T10:19:25","modified_gmt":"2011-05-04T14:19:25","slug":"get-registry-size-and-age","status":"publish","type":"post","link":"https:\/\/jdhitsolutions.com\/blog\/powershell\/1413\/get-registry-size-and-age\/","title":{"rendered":"Get Registry Size and Age"},"content":{"rendered":"

\"\"<\/a>I'm not sure why the registry has been on my mind lately. I probably need a vacation to get out more. But I put together a relatively simple Windows PowerShell function to retrieve registry statistics that you might find useful. My Get-Registry function will return information about the size of a registry as well as its age.<\/p>\n

[cc lang=\"PowerShell\"]
\nFunction Get-Registry {
\n[cmdletbinding()]<\/p>\n

Param (
\n[Parameter(Position=0,ValueFromPipeline=$True,ValueFromPipelineByPropertyName=$True)]
\n[ValidateNotNullorEmpty()]
\n[String[]]$Computername=$env:Computername
\n)<\/p>\n

Begin {
\n Write-Verbose \"Starting $($myinvocation.mycommand)\"
\n} #Begin<\/p>\n

Process {
\n Foreach ($computer in $computername) {
\n Write-Verbose \"Processing $computer\"
\n Try {
\n #retrieve registry information via WMI
\n $data=Get-WmiObject -Class Win32_Registry -ComputerName $computer -ErrorAction Stop
\n #Format the results and write an object to the pipeline
\n $data | Select-Object -Property @{Name=\"Computername\";Expression={$_.__SERVER}},
\n Status,CurrentSize,MaximumSize,@{Name=\"FreeSize\";Expression={$_.MaximumSize - $_.CurrentSize}},
\n @{Name=\"PercentFree\";Expression={ (1 - ($_.CurrentSize\/$_.MaximumSize))*100 }},
\n @{Name=\"Created\";Expression={$_.ConvertToDateTime($_.InstallDate)}},
\n @{Name=\"Age\";Expression={(Get-Date) - ( $_.ConvertToDateTime($_.InstallDate)) }}<\/p>\n

} #try<\/p>\n

Catch {
\n Write-Warning \"Failed to retrieve registry information from $($Computer.ToUpper())\"
\n Write-Warning $_.Exception.Message
\n }#Catch<\/p>\n

}#foreach $computer
\n} #Process<\/p>\n

End {
\n Write-Verbose \"Ending $($myinvocation.mycommand)\"
\n} #End<\/p>\n

} #end function
\n[\/cc]<\/p>\n

The download version includes comment based help. I kept this pretty simple. The function only takes a computer name as a parameter. You can add support for alternate credentials if you need it. In the Try script block the function invokes Get-WMIObject for the Win32_Registry class.<\/p>\n

[cc lang=\"PowerShell\"]
\nTry {
\n #retrieve registry information via WMI
\n $data=Get-WmiObject -Class Win32_Registry -ComputerName $computer -ErrorAction Stop
\n[\/cc]<\/p>\n

Remember, when using Try\/Catch you must ensure that any exceptions are treated as terminating, which is why I set -ErrorAction to Stop. If there is an error, then the code in the Catch script block executes. Otherwise, the function writes a custom object to the pipeline that includes not only original WMI properties but some calculated properties as well. <\/p>\n

[cc lang=\"PowerShell\"]
\n$data | Select-Object -Property @{Name=\"Computername\";Expression={$_.__SERVER}},
\n Status,CurrentSize,MaximumSize,@{Name=\"FreeSize\";Expression={$_.MaximumSize - $_.CurrentSize}},
\n @{Name=\"PercentFree\";Expression={ (1 - ($_.CurrentSize\/$_.MaximumSize))*100 }},
\n @{Name=\"Created\";Expression={$_.ConvertToDateTime($_.InstallDate)}},
\n @{Name=\"Age\";Expression={(Get-Date) - ( $_.ConvertToDateTime($_.InstallDate)) }}
\n[\/cc]<\/p>\n

For example, the Win32_Registry class doesn't have a property to reflect the computername, so I'm using the system property __SERVER and giving it a more user-friendly name. The sizes are in MB. For PercentFree I could have used the -F operator to format it as a percentage. But the result is a string object which wouldn't sort the way you would expect. The function accepts pipelined input or values as an array. Here is a sample of the expected output.<\/p>\n

[cc lang=\"DOS\"]
\nComputername : QUARK
\nStatus : OK
\nCurrentSize : 67
\nMaximumSize : 682
\nFreeSize : 615
\nPercentFree : 90.1759530791789
\nCreated : 6\/12\/2010 10:47:40 AM
\nAge : 325.23:08:08.1087703
\n[\/cc]<\/p>\n

If you find this useful I hope you'll let me know (and maybe consider my tip jar).<\/p>\n

Download Get-Registry<\/a>.<\/p>\n","protected":false},"excerpt":{"rendered":"

I’m not sure why the registry has been on my mind lately. I probably need a vacation to get out more. But I put together a relatively simple Windows PowerShell function to retrieve registry statistics that you might find useful. My Get-Registry function will return information about the size of a registry as well as…<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":false,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2}},"categories":[4,110,8,19],"tags":[32,534,560,540,547],"class_list":["post-1413","post","type-post","status-publish","format-standard","hentry","category-powershell","category-registry","category-scripting","category-wmi","tag-functions","tag-powershell","tag-registry","tag-scripting","tag-wmi"],"yoast_head":"\nGet Registry Size and Age • The Lonely Administrator<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/jdhitsolutions.com\/blog\/powershell\/1413\/get-registry-size-and-age\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Get Registry Size and Age • The Lonely Administrator\" \/>\n<meta property=\"og:description\" content=\"I'm not sure why the registry has been on my mind lately. 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