How can I script updates for the system reserved partition in Windows 11?

Here's a complete script example that might work for you:
```powershell
$fontsPath = "Z:EFIMicrosoftBootFonts"

# Mount EFI partition
$diskpartScript = @"
select disk 0
select partition 1
assign letter=Z
exit
"@

$scriptPath = "$env:TEMPdp_detect.txt"
$diskpartScript | Set-Content -Path $scriptPath -Encoding ASCII

Start-Process -FilePath "diskpart.exe" -ArgumentList "/s `"$scriptPath`"" -Wait -NoNewWindow
Start-Sleep -Seconds 2

# Check for font files
if (Test-Path $fontsPath -and (Get-ChildItem $fontsPath -File)) {
Write-Output "Font files exist. Remediation needed."
exit 1
} else {
Write-Output "No font files found. No remediation needed."
exit 0
}
```
This script mounts the EFI partition and checks for font files. If they’re found, remediation is needed!

For disk management, PowerShell has its own set of commands that you can use, which can be simpler than Diskpart. Here's a quick example of how to manage partitions safely:
```
Add-PartitionAccessPath -DiskNumber 0 -PartitionNumber 1 -AccessPath Z:
```
But make sure to find the actual system partition programmatically—don't assume Disk 0 and Partition 1 are always the right choice! You can use:
```
Get-Partition | Where-Object -Property IsSystem -EQ $true
```
This will help avoid risks of using the wrong partition!

You can use the `/s` parameter in Diskpart to execute a script file directly. The commands you've written can be easily translated. To get started, here’s a sample of how you can set it up:
```
@(
"List disk"
"sel disk 0"
"list part"
"sel part 1"
"assign letter=z"
) | diskpart.exe
```
This way, you’re sending commands to Diskpart as if you were typing them out manually!