Endpoint telemetry, PC Detail rework and a checked backup/restore path

scripts/uninstall-shopdbagent.ps1

@@ -1,10 +1,11 @@
 # uninstall-shopdbagent.ps1
 # ShopDB Endpoint Agent uninstaller. Run from an ELEVATED (admin) PowerShell on
-# the endpoint. Reverses everything install-shopdbagent.ps1 and the site agent
-# generator's install.ps1 create:
+# the endpoint. Reverses everything the site agent generator's install.ps1
+# creates:
 #   - stops and deletes the Windows service
 #   - kills any running agent/tray processes
 #   - removes the tray logon Run key (64-bit and 32-bit views)
+#   - unregisters the ShopDB user-context probe scheduled task
 #   - removes the credential hive HKLM\SOFTWARE\GE\ShopDB (both views)
 #   - removes the Defender path exclusion for the install directory
 #   - deletes the install directory and the ProgramData data/log tree
@@ -20,6 +21,10 @@ param(
 	[string] $ServiceName = "ShopDbEndpointAgent",
 	[string] $TrayExeName = "shopdb-endpoint-tray.exe",
 
+	# Scheduled task that runs the user-context probe in the operator's session.
+	# Must match the installer's -UserContextTaskName.
+	[string] $UserContextTaskName = "ShopDB user-context probe",
+
 	# Also remove any server TLS certificate the site-agent installer imported
 	# into the machine Trusted Root store. Off by default because a root cert is
 	# shared trust material: only pull it when you are sure no other service on
@@ -113,6 +118,34 @@ Start-Sleep -Seconds 1
 # 3. Remove the tray logon Run key entry (both views) and the credential hive.
 Write-Host "[3/6] Removing registry entries ..."
 Remove-HklmBothViews -SubKey "SOFTWARE\Microsoft\Windows\CurrentVersion\Run" -Name "ShopDbEndpointTray"
+
+# Unregister the probe task. Left behind it would keep firing at every logon
+# against a deleted exe, which shows up as a recurring task-failure history on a
+# machine nobody believes has the agent on it any more.
+try {
+	if (Get-ScheduledTask -TaskName $UserContextTaskName -ErrorAction SilentlyContinue) {
+		Unregister-ScheduledTask -TaskName $UserContextTaskName -Confirm:$false -ErrorAction Stop
+		Write-Host "  removed scheduled task '$UserContextTaskName'"
+	}
+	else {
+		Write-Host "  scheduled task '$UserContextTaskName' not present."
+	}
+}
+catch {
+	Write-Warning "  could not remove scheduled task '$UserContextTaskName': $($_.Exception.Message)"
+}
+
+# The install's one-shot tray launcher is transient and normally removes itself,
+# but an install that failed partway can leave it behind.
+try {
+	if (Get-ScheduledTask -TaskName "ShopDB tray first launch" -ErrorAction SilentlyContinue) {
+		Unregister-ScheduledTask -TaskName "ShopDB tray first launch" -Confirm:$false -ErrorAction Stop
+		Write-Host "  removed leftover scheduled task 'ShopDB tray first launch'"
+	}
+}
+catch {
+	Write-Warning "  could not remove scheduled task 'ShopDB tray first launch': $($_.Exception.Message)"
+}
 Remove-HklmBothViews -SubKey "SOFTWARE\GE\ShopDB"
 
 # Remove the All-Users Start Menu shortcut the site-agent installer created.