move check values to left side of comparison

Fix-EnableSystemRestore.ps1

@@ -1,4 +1,4 @@
-If ( $(Get-ComputerRestorePoint) -ne $null ) { Write-Output "System Restore is already enabled" ; Exit }
+If ( $null -ne $(Get-ComputerRestorePoint) ) { Write-Output "System Restore is already enabled" ; Exit }
 Write-Output "Enabling System Restore"
 Try { Enable-ComputerRestore -Drive $Env:SystemDrive }
 Catch { Write-Error $_.Exception.Message }

Get-EventData.ps1

@@ -26,7 +26,7 @@ $Logs = Get-WinEvent -ListLog *
 ForEach ($Log in $Logs) {
     $LogName = $Log.LogName
     Write-Output "Exporting events from: ${LogName}"
-    Try { Get-WinEvent -LogName $LogName -FilterXPath "Event/System[Level=1 or Level=2 or Level=3]" -ErrorAction Stop | Select LogName,ProviderName,Level,Id,Message | Export-Csv -Path "${ExportedEvents}" -Append -NoTypeInformation -ErrorAction Stop }
+    Try { Get-WinEvent -LogName $LogName -FilterXPath "Event/System[Level=1 or Level=2 or Level=3]" -ErrorAction Stop | Select-Object LogName,ProviderName,Level,Id,Message | Export-Csv -Path "${ExportedEvents}" -Append -NoTypeInformation -ErrorAction Stop }
     Catch { Write-Error $_.Exception.Message }
 }
 
@@ -41,7 +41,6 @@ Catch { Write-Error $_.Exception.Message }
 # Upload to SFTP site
 If ( Test-Path $ExportedEvents ) {
     $SFTPCred = New-Object System.Management.Automation.PSCredential($SFTPUser,$SFTPPass)
-    $DestinationFile = $(Split-Path -Path $ExportedEvents -Leaf)
     
     # Wait for a random amount of time before starting the connection and uploading
     Start-Sleep -Seconds $(Get-Random -Minimum 1 -Maximum 120)

Get-InstalledSoftware.ps1

@@ -22,7 +22,7 @@ Function Test-ItemProperty {
     param([Parameter(Mandatory=$true)][string]$Path,[Parameter(Mandatory=$true)][string]$Name)
     Try {
         $test = Get-ItemProperty -Path $Path -Name $Name -ErrorAction SilentlyContinue 
-        If (($test -eq $null) -or ($test.Length -eq 0)) { Return $false } Else { Return $true }
+        If (($null -eq $test) -or ($test.Length -eq 0)) { Return $false } Else { Return $true }
     }
     Catch { Return $false }
 }
@@ -59,7 +59,7 @@ Function Get-ItemPropertyInfo {
 
                 ## Make sure $formatstring has a value, if not just try to cast directly to a datetime
                 Try {
-                If ( $formatstring -eq $null ) {
+                If ( $null -eq $formatstring ) {
                     $date = [datetime]$retval
                 } Else {
                     $date = [datetime]::ParseExact($retval,$formatstring,$null)