Query All Event Logs for recent events for last hour using PowerShell

pull-win-events-for-last-hour.ps1

$old = (Get-Date).AddHours(-1)
$before_lines = 50
$after_lines = 50

Write-Host "Pulling Warn/Error Windows Events started >= $old"

Get-WinEvent -ListLog * -EA silentlycontinue | 
Where-Object { $_.recordcount -AND $_.lastwritetime -gt $old } | 
ForEach-Object { get-winevent -FilterHashtable @{LogName=$_.logname; StartTime=$old } -EA silentlycontinue } | 
Sort-Object TimeCreated | 
Format-List TimeCreated, LevelDisplayName, ProviderName, Message |
Out-String -Stream -Width 1000 | 
Select-String -Pattern 'LevelDisplayName\s+:\s+Error.*','LevelDisplayName\s+:\s+Warning.*' -Context $before_lines,$after_lines