From c9fece25c7603ad969a664196979eafbd4956633 Mon Sep 17 00:00:00 2001
From: Bryan Cerrati <bryancerrati@nopenopenope.localhost>
Date: Thu, 26 Jun 2025 13:21:49 -0400
Subject: [PATCH] init

---
 upgradechecker.ps1 | 68 ++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 68 insertions(+)
 create mode 100644 upgradechecker.ps1

diff --git a/upgradechecker.ps1 b/upgradechecker.ps1
new file mode 100644
index 0000000..aebe530
--- /dev/null
+++ b/upgradechecker.ps1
@@ -0,0 +1,68 @@
+# Require admin rights
+If (-not ([Security.Principal.WindowsPrincipal] [Security.Principal.WindowsIdentity]::GetCurrent()).IsInRole(`
+    [Security.Principal.WindowsBuiltinRole]::Administrator)) {
+    Write-Error "Please run this script as Administrator." 
+    exit
+}
+
+$results = @{}
+
+# CPU Check (existence assumed OK for this test)
+$cpu = Get-WmiObject Win32_Processor
+$results["CPU Present"] = $true
+
+# RAM Check
+$ram = [math]::Round((Get-WmiObject Win32_ComputerSystem).TotalPhysicalMemory / 1GB, 2)
+$results["RAM >= 4GB"] = $ram -ge 4
+
+# TPM Check
+try {
+    $tpm = Get-WmiObject -Namespace "Root\CIMv2\Security\MicrosoftTpm" -Class Win32_Tpm -ErrorAction Stop
+    $results["TPM Present"] = $tpm.TpmPresent
+    $results["TPM Ready"] = $tpm.SpecVersion -match "2\.0"
+} catch {
+    $results["TPM Present"] = $false
+    $results["TPM Ready"] = $false
+}
+
+# Partition Style
+try {
+    $disk = Get-Disk | Where-Object { $_.IsSystem -eq $true }
+    $results["Disk is GPT"] = $disk.PartitionStyle -eq 'GPT'
+} catch {
+    $results["Disk is GPT"] = $false
+}
+
+# Boot Mode
+try {
+    $firmware = Get-WmiObject -Class Win32_ComputerSystem
+    $results["UEFI Boot"] = $firmware.BootupState -like "*UEFI*"
+} catch {
+    $results["UEFI Boot"] = $false
+}
+
+# Secure Boot (Optional)
+try {
+    $sb = Confirm-SecureBootUEFI -ErrorAction Stop
+    $results["Secure Boot Enabled"] = $sb
+} catch {
+    $results["Secure Boot Enabled"] = $false
+}
+
+# Final Verdict
+$eligible = $true
+foreach ($check in $results.Keys) {
+    if ($results[$check] -ne $true) {
+        $eligible = $false
+    }
+}
+
+# Output
+Write-Host "Windows 11 Eligibility Check:" -ForegroundColor Cyan
+$results.GetEnumerator() | Sort-Object Name | Format-Table -AutoSize
+Write-Host "`nResult: " -NoNewline
+if ($eligible) {
+    Write-Host "YES – This machine is eligible for Windows 11." -ForegroundColor Green
+} else {
+    Write-Host "NO – This machine is NOT eligible for Windows 11." -ForegroundColor Red
+}