To enumerate the invalid path , Mike Rosado has posted a blog on June 18, 2010 which gave error to me hence performed few modification and now its working fine with me. Hope this will work for you as well as it worked for me.

Step 1 : Open notepad.exe .
Step 2 : Copy the entire content mentioned below and paste it in notepad.
Step 3 : Save the notepad as "GetInvalidImagePathV2.ps1"
Step 4. Execute the above script file from Powershell by navigating upto the location and executing the files as ".\GetInvalidImagePathV2.ps1" [without quote]

 

###########################################################################
#
# NAME: GetInvalidImagePathsV2.ps1
#
# AUTHOR: Suhas Rao
# REVISED BY: Mark Stanfill
#
# COMMENT: This script was created to help minimize the time of parsing through the registry searching for invalid ImagePaths
# under the HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services keys.
#
# For more details, search for “Enumeration of the files failed” in a blog posted on:
# http://blogs.technet.com/b/askcore/
#
# Disclaimer:
#
# The sample scripts are not supported under any Microsoft standard support program or service.
# The sample scripts are provided AS IS without warranty of any kind. Microsoft further disclaims all implied warranties including,
# without limitation, any implied warranties of merchantability or of fitness for a particular purpose.
# The entire risk arising out of the use or performance of the sample scripts and documentation remains with you.
# In no event shall Microsoft, its authors, or anyone else involved in the creation, production,
# or delivery of the scripts be liable for any damages whatsoever (including, without limitation,
# damages for loss of business profits, business interruption, loss of business information, or other pecuniary loss)
# arising out of the use of or inability to use the sample scripts or documentation, even if Microsoft has been advised of the possibility of such damages.
#
#
# VERSION HISTORY:
# 1.0 – Initial release
# 2.0 – Included searching for spaces in the path
#
###########################################################################

$Verbose = $false;

if (($ARGS.Count -gt 0) -and ($ARGS[0] -ieq “-verbose”))
{
$Verbose = $true;
}

#
# The list of possible reasons for failure
#
$FailureReasons = @{
“INVALID_CHARS” = “The service path contains invalid characters. ” +
“Characters < > : `” | ? cannot be used in a file path.”;
“INVALID_FORMAT” = “The service path does not have a proper path format. ” +
“Only paths beginning with [<Drive>]:\ format are supported.”;
“DOUBLE_SLASH” = “The service path contains double inverted slashes. ” +
“UNC Network paths or paths containing double inverted slashes are not supported.”;
“RELATIVE_PATH” = “The service path is relative. ” +
“Only absolute paths are supported.”;
“FOWARD_SLASH” = “The service path contains a foward slash. ” +
“Only paths containing an inverted slash are supported.”;
“REPARSE_POINT” = “The service path contains a reparse point. ” +
“Paths containing a reparse point are not supported.”;
“UNRECOGNIZED_PATH” = “Unable to check the path. ” +
“Expecting the ImagePath for the service to be a .dll or .exe”;
“SPACE_IN_PATH” = “The service path contains spaces, ” +
“the whole path needs to be enclosed using double quotes”;

}

#
# The failure INVALID_CHARS can occur due to the following type of characters
#
$InvalidChars = @{
“*\\*” = “DOUBLE_SLASH”;
“*\..\*” = “RELATIVE_PATH”;
“*\.\*” = “RELATIVE_PATH”;
“*/*” = “FOWARD_SLASH”

}
#
# Display the service info
#
function PrintServiceInfo([System.Management.ManagementObject] $Service, [string] $Header,
[string] $Reason, [string] $Color)
{
$Name = $Service.Name
$Caption = $Service.Caption
$Path = $Service.PathName
$Info = $FailureReasons.Item($Reason)

if ($Color -eq “”)
{
$Color = “White”
}

Write-Host “$Header`n Service Name : $Name`n Service Caption : $Caption`n Registry key : HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\services\$Name\ImagePath`n Value : $Path`n Reason : $Info`n `n” -ForeGroundColor “$Color”

}

#
# For verbose mode, print extra info for every path
#
function PrintStatus([Boolean] $IsBadPath)
{
if ($Verbose -eq $true)
{
if ($IsBadPath -eq $true)
{
Write-Host “ERROR” -ForeGroundColor Red;
}
else
{
Write-Host “OK” -ForeGroundColor Green;
}
}
}

#
# This is a core function that fetches the service path given the input from registry
# It expects the service path to be a .dll or .exe
#
function GetActualPathFromServiceImagePath([string] $ServiceImagePath)
{
$ActualPathName = $null
$IndexForPath = $null

$ExeIndex = $ServiceImagePath.ToLower().IndexOf(“.exe”);
$DllIndex = $ServiceImagePath.ToLower().IndexOf(“.dll”);

##
## NOTE: Assumption is that the Service Path Always ends in dll or exe
##
if(($ExeIndex -eq -1) -and ($DllIndex -eq -1))
{
return $null
}

##
## If the path contains both Dll And Exe then we should use the One that Comes First
##
if(($ExeIndex -ne -1) -and ($DllIndex -ne -1))
{
if($ExeIndex -gt $DllIndex)
{
$IndexForPath = $DllIndex +4;
}
else
{
$IndexForPath = $ExeIndex +4;
}
}
else
{
if($ExeIndex -eq -1)
{
$IndexForPath = $DllIndex +4;
}
else
{
$IndexForPath = $ExeIndex +4;
}
}
$ActualPathName = $ServiceImagePath.Substring(0,$IndexForPath)

$Quote = “`””
if($ActualPathName.StartsWith($Quote))
{
$ActualPathName = $ActualPathName.Remove(0,1);
}

if ($ActualPathName.StartsWith(“\\?\”) -or $ActualPathName.StartsWith(“\\.\”))
{
$ActualPathName = $ActualPathName.Substring(4);
}

return $ActualPathName
}
##################################################################################
## Main ##
##################################################################################

$Services = Get-WmiObject Win32_Service
$BadServices = $null
$Reasons = $null
$UnrecognizedPath = 0
for ($i = 0; $i -lt $Services.Count; $i++)
{
##
## Get the actual Exe Path
##
$ActualPathName = GetActualPathFromServiceImagePath $Services[$i].PathName
if($ActualPathName -eq $null)
{
$Path = $Services[$i].PathName
$Name = $Services[$i].Name
$UnrecognizedPath = 1;

PrintServiceInfo $Services[$i] “WARNING:” “UNRECOGNIZED_PATH” “Yellow”
continue;
}
########new
#######make sure all paths with spaces have double quotes around them

if ( ($Services[$i].PathName -match “^[^\x22].*\s.*\.exe.*” ) -eq $true)
{
$BadServices += ,$Services[$i];
$Reasons += ,”SPACE_IN_PATH”;

PrintStatus($true);
continue;
}

if ($Verbose -eq $true)
{
Write-Host -nonewline “Analyzing path ‘$ActualPathName’ …”
}

##
## Check for Attributes
##
if((Test-Path -IsValid $ActualPathName) -eq $False)
{
$BadServices += ,$Services[$i] ;
$Reasons += ,”INVALID_CHARS”;

PrintStatus($true);
continue;
}
##
## Check for invalid chars
##
foreach ($Key in $InvalidChars.Keys)
{
$Value = $InvalidChars.Item($Key);

if ($ActualPathName -like $Key)
{
$temp = $Key.Replace(“*”,””)

$BadServices += ,$Services[$i]
$Reasons += ,$Value;
}

}

##
## The Start string must be in the below specified format
##
if((($ActualPathName -match “^[a-z]:\\”) -ne $true))
{
$BadServices += ,$Services[$i]
$Reasons += ,”INVALID_FORMAT”;

PrintStatus($true);
continue;
}

##
## Check for Reparse points
##
$RootPath = [System.IO.Path]::GetPathRoot($ActualPathName)
$Path = $ActualPathName
$DoesPathExist = Test-Path -Path $ActualPathName
while(($DoesPathExist -eq $true) -and ($Path -ne $RootPath))
{

$h = [System.IO.File]::GetAttributes($Path);

if ($h.CompareTo([System.IO.FileAttributes]::ReparsePoint) -ge 0)
{
$BadServices += ,$Services[$i]
$Reasons += ,”REPARSE_POINT”;

PrintStatus($true);
break;
}

if ($Path.Contains(“\”) -ne $true)
{
break;
}

$strPath = $Path.Substring(0,$Path.LastIndexOf(“\”));
$Path = $strPath
}

PrintStatus($false);
}
if ($BadServices.Count -gt 0)
{
echo “”
echo “Following are the service(s) found to be reporting invalid paths.”
echo “”

for ($i=0; $i-lt$BadServices.Count; $i++)
{
$Count = $i + 1
PrintServiceInfo $BadServices[$i] “$Count.” $Reasons[$i]
}
}
elseif ($UnrecognizedPath -ne 1)
{
echo “”
Write-Host “No invalid service paths found.” -ForeGroundColor Green
echo “”
}