Edit C:\Windows\diagnostics\scheduled\Maintenance\TS

Edit C:\Windows\diagnostics\scheduled\Maintenance\TS_InaccurateSystemTime.ps1

trap {break}

# Check whether the system time is accurate

Import-LocalizedData -BindingVariable localizationString -FileName CL_LocalizationData
. .\CL_Utility.ps1

# Function to parse the strip data with time server
function Parse-OffsetData($offsetData = $(throw "No offset data is specified"))
{
    if($offsetData -eq $null)
    {
        return $null
    }

$result = @()
    [string]$pattern = "\d{2,}:\d{2}:\d{2},\W([+-]\d{2,})\.\d{7}s"
    $offsetData.GetEnumerator() | ForEach-Object {
        if(($_ -match $pattern) -and ($matches[1] -ne $null))
        {
            $result += [long]$matches[1]
        }
    }

return $result
}

# Function to check whether the system time is accurate
function Test-Offset([int]$offset = $(throw "No offset is specified"))
{
    [int]$maxOffset = (5 * 60)
    return ([Math]::Abs($offset) -lt $maxOffset)
}

# Function to check whether the system time is accurate
Function Check-TimeAccurateness([string]$timeServer = $(throw "No time source is specified"))
{

[bool]$checked = $false
    if(-not[String]::IsNullOrEmpty($timeServer))
    {
        (ping.exe $timeServer /n 2) | Out-Null
        if($LASTEXITCODE -eq 0)
        {
            [int]$sampleCount = 1
            [DateTime]$accurateion = [DateTime]::Now

$offsetData = (w32tm.exe /stripchart /computer:$timeServer /dataonly /samples:$sampleCount)
            (Parse-OffsetData $offsetData) | Foreach-Object {
                if(-not(Test-Offset $_))
                {
                    $timeDifference = $_
                    $accurateion = [DateTime]::Now.Add([TimeSpan]::FromSeconds($_))

New-Object -TypeName System.Management.Automation.PSObject | Select-Object -Property @{Name=$localizationString.timeServerName;Expression={$timeServer}},@{Name=$localizationString.samplesCollected;Expression={$sampleCount}},@{Name=$localizationString.serverTime;Expression={$accurateion.ToString()}},@{Name=$localizationString.localTime;Expression={[DateTime]::Now}},@{Name=$localizationString.timeDifference;Expression={"$timeDifference" + "s"}} |
                        ConvertTo-Xml | Update-DiagReport -id TimeServer -Name $localizationString.timeDelayAgainstTimeServer_name -Verbosity Informational -rid "RC_InaccurateSystemTime"
                    $checked = $true

Update-DiagRootCause -id "RC_InaccurateSystemTime" -Detected $true -parameter @{'AccurateTime'=$accurateion.ToString()}
                } else {
                    Update-DiagRootCause -id "RC_InaccurateSystemTime" -Detected $false -parameter @{'AccurateTime'=$accurateion.ToString()}
                    $checked = $true
                }
            }
        }
    }

return $checked
}

# function to get the startup type of a serivce
function GetServiceStartupType([string]$serviceName) {
    [string]$state = "Disabled"

[WMI]$service = @(Get-WmiObject -Query "Select * From Win32_Service Where Name = `"$serviceName`"")[0]
    if($null -ne $service) {
        $state = $service.StartMode
    }

return $state
}

Write-DiagProgress -activity $localizationString.checkSystemTime_progress

if("Disabled" -eq (GetServiceStartupType "W32time")) {
    return
}

[bool]$timeServiceStatus = Get-ServiceStatus "w32time"
try {
    if(-not($timeServiceStatus)) {
        Start-Service "w32time"
        WaitFor-ServiceStatus "w32time" ([ServiceProcess.ServiceControllerStatus]::Running)
    }

[string]$timeServerInfo = (w32tm.exe /query /source)
    if($LASTEXITCODE -ne 0)
    {
        return
    }

[string]$timeServer = $timeServerInfo.Split(',', [StringSplitOptions]::RemoveEmptyEntries)[0].Trim()
    if(-not(Check-TimeAccurateness $timeServer))
    {
        $timeServer = "time.windows.com"
        [bool]$checked = Check-TimeAccurateness $timeServer
        if(-not($checked)) {
            [DateTime]$accurateion = [DateTime]::Now
            Update-DiagRootCause -id "RC_InaccurateSystemTime" -Detected $false -parameter @{'AccurateTime'=$accurateion.ToString()}
        }
    }
} finally {
    if(-not($timeServiceStatus)) {
        Stop-Service "w32time"
        WaitFor-ServiceStatus "w32time" ([ServiceProcess.ServiceControllerStatus]::Stopped)
    }
}

Ms-Dos/Windows Unix Write backup

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