• Status: Solved
  • Priority: Medium
  • Security: Public
  • Views: 638
  • Last Modified:

PowerShell Script to Search for PST files

I had this question after viewing Powershell script to find files on network computers..

I am trying to create a script on how to search for pst files in the hard drive. How can I achieve this? Any help on the script would be appreciated.

Junior Sofe
Junior Sofe
1 Solution
Niten KumarPrincipal Systems AdministratorCommented:
This line of code does the trick, which can be typed directly in PowerShell ISE, in order to avoid script signing:

   1. Start Windows PowerShell ISE
   2. Type gci -path c:\ -recurse -include *.pst|select-object fullname,lastwritetime|export-csv c:\temp\pst.csv and press enter.
    3. Wait until the script finishes

In this case the output is sent to a csv file in the c:\temp folder.

OR you can use the script below:

$strComputers = Get-Content -Path "C:\computernames.txt"
[bool]$firstOutput = $true
foreach($strComputer in $strComputers)
$colFiles = Get-Wmiobject -namespace "root\CIMV2" `
-computername $strComputer `
-Query "Select * from CIM_DataFile `
Where Extension = 'pst'"
foreach ($objFile in $colFiles)
if($objFile.FileName -ne $null)
$filepath = $objFile.Drive + $objFile.Path + $objFile.FileName + "." `
+ $objFile.Extension;
$query = "ASSOCIATORS OF {Win32_LogicalFileSecuritySetting='" `
+ $filepath `
+ "'} WHERE AssocClass=Win32_LogicalFileOwner ResultRole=Owner"

$colOwners = Get-Wmiobject -namespace "root\CIMV2" `
-computername $strComputer `
-Query $query
$objOwner = $colOwners[0]
$user = $objOwner.ReferencedDomainName + "\" + $objOwner.AccountName
$output = $strComputer + "," + $filepath + "," + $user + "," + $objFile.FileSize/1KB + "," + $objFile.LastModified
Write-output $output | Out-File -Encoding ascii -filepath "C:\pstdetails.csv"
$firstOutput = $false
Write-output $output | Out-File -Encoding ascii -filepath "C:\pstdetails.csv" -append
Senior IT System EngineerIT ProfessionalCommented:
Is it just for one user only or all users in all AD domain ?
Junior SofeAuthor Commented:
@ ITSystemEngineer...

For a start, its just only for one user.
Senior IT System EngineerIT ProfessionalCommented:

use the script below to find multiple extension of '*.PST', '*.OST'

Edit line:
27-31 for the paramater according to your environment
59 for the SMTP address

Function Convert-Size {
	Param (
	Begin {
		If (-Not $ConvertSize) {
			Write-Verbose ("Creating signature from Win32API")
			$Signature =  @"
				[DllImport("Shlwapi.dll", CharSet = CharSet.Auto)]
				public static extern long StrFormatByteSize( long fileSize, System.Text.StringBuilder buffer, int bufferSize );
			$Global:ConvertSize = Add-Type -Name SizeConverter -MemberDefinition $Signature -PassThru
		Write-Verbose ("Building buffer for string")
		$stringBuilder = New-Object Text.StringBuilder 1024
	Process {
		Write-Verbose ("Converting {0} to upper most size" -f $Size)
		$ConvertSize::StrFormatByteSize( $Size, $stringBuilder, $stringBuilder.Capacity ) | Out-Null

$ScanPath = "C:\Users\"
$ResultFile = "C:\Temp\Files.csv"
$ResultEmailRecipient = "admin@domain.com"
$ResultEmailSender = "Powershell@localhost.com"
$IncludeFilter = @('*.PST', '*.OST')

#Powershell 3.0
$FileList = Get-ChildItem -Path $ScanPath -Include $IncludeFilter -Recurse -File

# Powershell 2.0
#$FileList = Get-ChildItem -Path $ScanPath -Include $IncludeFilter -Recurse | Where-Object {! $_.PSIsContainer}

$FileList |
	Select-Object FullName, LastWriteTime, @{Name='Size'; Expression={$_.Length | Convert-Size}}, @{Name='ByteSize'; Expression={$_.Length}} |
	Export-Csv -NoTypeInformation -Path $ResultFile

$Summary = $FileList | Group-Object Extension | ForEach-Object {
	$ByteSize = ($_.Group | Measure-Object Length -Sum).Sum
	$_ | Select-Object -Property `
		@{Name='Type'; Expression={$_.Name}},
		@{Name='Size'; Expression={$ByteSize | Convert-Size}},
		@{Name='ByteSize'; Expression={$ByteSize}}
} | Sort-Object -Property ByteSize -Descending

$Body = @"
User File Report for $($ENV:ComputerName):

$($Summary | Format-Table -AutoSize | Out-String)


Send-MailMessage -Attachments $ResultFile -To $ResultEmailRecipient -From $ResultEmailSender -Subject 'File Report' -Body $Body -SmtpServer smtp.domain.com

Open in new window

Hope that helps and let me know how you go.
Jason CrawfordTransport NinjaCommented:
No comment has been added to this question in more than 21 days, so it is now classified as abandoned.

I have recommended this question be closed as follows:

Accept: Senior IT System Engineer (https:#a41841121)

If you feel this question should be closed differently, post an objection and the moderators will review all objections and close it as they feel fit. If no one objects, this question will be closed automatically the way described above.

Experts-Exchange Cleanup Volunteer
Question has a verified solution.

Are you are experiencing a similar issue? Get a personalized answer when you ask a related question.

Have a better answer? Share it in a comment.

Join & Write a Comment

Featured Post

Keep up with what's happening at Experts Exchange!

Sign up to receive Decoded, a new monthly digest with product updates, feature release info, continuing education opportunities, and more.

Tackle projects and never again get stuck behind a technical roadblock.
Join Now