IT Toolbox
IT Toolbox

Search for critical errors in the last 24 hours

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Search for critical errors in the last 24 hours

Extracts errors and critical events from System and Application logs over the last 24 hours.

Command / script 
$Depuis = (Get-Date).AddHours(-24)

Get-WinEvent -FilterHashtable @{
    LogName   = @('System','Application')
    Level     = 1,2
    StartTime = $Depuis
} -ErrorAction SilentlyContinue |
    Select-Object TimeCreated, LogName, Id, ProviderName, LevelDisplayName, Message |
    Sort-Object TimeCreated -Descending |
    Format-List

When should you use it?

Run this after a crash, unexpected restart, or application failure.

What the script does

  • Levels 1 and 2 correspond to critical events and errors.
  • Change AddHours(-24) to adjust the time window.

Precautions

  • Event logs may contain errors with no real impact; always correlate the timestamp with the reported symptom.

Rollback

Read-only operation; no rollback is required.

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