Get-EventLog -LogName System -After ((get-date).AddDays(-30)) -EntryType Error , Warning  |  ConvertTo-Csv | Out-File -FilePath C:\Users\Administrator\Desktop\EVENTLOGS\SYSTEMlast30days.csv -Force -Verbose

Get-EventLog -LogName Security -After ((get-date).AddDays(-30)) -EntryType FailureAudit,SuccessAudit |  ConvertTo-Csv | Out-File -FilePath C:\Users\Administrator\Desktop\EVENTLOGS\SECURITYlast30days.csv -Force -Verbose

Get-EventLog -LogName Application -After ((get-date).AddDays(-30)) -EntryType Error, Warning |  ConvertTo-Csv | Out-File -FilePath C:\Users\Administrator\Desktop\EVENTLOGS\APPLICATIONlast30days.csv -Force
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