1. Install VMware PowerCLI: If you haven’t installed VMware PowerCLI yet, download and install it from the official VMware website: https://code.vmware.com/web/dp/tool/vmware-powercli/12.5.0
2. Connect to vCenter Server: Open PowerShell or PowerShell ISE and connect to your vCenter Server using the Connect-VIServer cmdlet. Replace 'YOUR_VCENTER_SERVER' with the IP address or FQDN of your vCenter Server:

Connect-VIServer -Server 'YOUR_VCENTER_SERVER' -User 'YOUR_USERNAME' -Password 'YOUR_PASSWORD'

Generate the report for tasks: You can use the Get-VIEvent cmdlet in PowerCLI to retrieve events and filter them based on the task type (e.g., backup, clone, snapshot, etc.). Here’s a PowerShell script to generate the report:

# Define the output file path for the report
$outputFile = "C:\Path\To\Your\Report.txt"

# Get all VMs
$vms = Get-VM

# Initialize an empty array to store the events
$taskEvents = @()

# Get events for each VM and filter the ones related to tasks (backup, clone, snapshot, etc.)
foreach ($vm in $vms) {
    $events = Get-VIEvent -Entity $vm | Where-Object { $_.GetType().Name -match "TaskEvent" }
    $taskEvents += $events
}

# Generate a report and write it to the output file
$report = @()

foreach ($event in $taskEvents) {
    $vmName = $event.Vm.Name
    $eventType = $event.GetType().Name
    $eventFullType = $event.GetType().FullName
    $eventCreated = $event.CreatedTime
    $eventUserName = $event.UserName
    $eventFullData = $event | Format-List | Out-String

    $reportLine = @"
VM Name: $vmName
Event Type: $eventType
Event Full Type: $eventFullType
Event Created: $eventCreated
Event User Name: $eventUserName
Event Details:
$eventFullData
"@

    $report += $reportLine
}

# Save the report to the output file
$report | Out-File -FilePath $outputFile

# Display success message
Write-Host "Report generated successfully. Check $outputFile for the report."

Disconnect from vCenter Server: After generating the report, it’s a good practice to disconnect from the vCenter Server using the Disconnect-VIServer cmdlet:

Disconnect-VIServer -Server 'YOUR_VCENTER_SERVER' -Force -Confirm:$false

Please make sure to replace 'YOUR_VCENTER_SERVER', 'YOUR_USERNAME', and 'YOUR_PASSWORD' in the script with your vCenter server details. Additionally, modify the $outputFile variable to specify the path and filename for the generated report. The script will search for task-related events for each VM, extract relevant details, and save the report to the specified output file.