diff --git a/docs/operator-testing.md b/docs/operator-testing.md
index 2e83002..7e9ddf8 100644
--- a/docs/operator-testing.md
+++ b/docs/operator-testing.md
@@ -50,6 +50,14 @@ powershell.exe -NoProfile -ExecutionPolicy Bypass -File .\register-global.ps1 -A
 
 ## 4. List MCP Servers In Each CLI
 
+Use the canonical Windows profile when testing global CLI configuration. This avoids the accented-profile drift that can make a CLI read stale user-level settings:
+
+```powershell
+$env:USERPROFILE = 'C:\Users\KimHarjamaki'
+$env:HOME = 'C:\Users\KimHarjamaki'
+$env:AZURE_CONFIG_DIR = 'C:\Users\KimHarjamaki\.azure'
+```
+
 ```powershell
 codex.cmd mcp list | Select-String -Pattern 'prompt-refiner|obsidian|Connected|enabled'
 claude.cmd mcp list | Select-String -Pattern 'prompt-refiner|obsidian|Connected|Configured'
@@ -64,6 +72,10 @@ Expected result:
 
 Codex may show `Unsupported` in the status column for stdio MCP entries. Treat the registration doctor as the authoritative config drift check.
 
+On Windows, Obsidian MCP must be registered with `npx.cmd`, not `npx`. `npx` can resolve to the PowerShell shim (`npx.ps1`) and fail under the default execution policy.
+
+Gemini can report MCP servers as disabled when the current folder is untrusted. Start Gemini from the repo once with `--skip-trust` or accept the workspace trust prompt. Gemini also requires its own auth setup (`GEMINI_API_KEY`, Vertex AI, or Gemini Code Assist) before a trusted full CLI session can start.
+
 ## 5. Verify Dashboard Runtime Health
 
 Start or restart the local background runtime:
diff --git a/universal-refiner/scripts/operations/register-global.ps1 b/universal-refiner/scripts/operations/register-global.ps1
index 793e726..feb21d6 100644
--- a/universal-refiner/scripts/operations/register-global.ps1
+++ b/universal-refiner/scripts/operations/register-global.ps1
@@ -320,6 +320,8 @@ $profile = Resolve-NormalizedPath $ProfileRoot
 $repoRoot = Resolve-NormalizedPath (Join-Path $PSScriptRoot "..\..")
 $serverPath = ConvertTo-ConfigPath (Join-Path $repoRoot "dist\src\index.js")
 $vaultPath = ConvertTo-ConfigPath $ObsidianVaultPath
+$isWindowsHost = $env:OS -eq "Windows_NT" -or [System.IO.Path]::DirectorySeparatorChar -eq "\"
+$npxCommand = if ($isWindowsHost) { "npx.cmd" } else { "npx" }
 
 if ([string]::IsNullOrWhiteSpace($CodexHome)) {
     if (-not $PSBoundParameters.ContainsKey("ProfileRoot") -and -not [string]::IsNullOrWhiteSpace($env:CODEX_HOME)) {
@@ -336,7 +338,7 @@ $servers = [ordered]@{
         args = @($serverPath)
     }
     "obsidian" = [ordered]@{
-        command = "npx"
+        command = $npxCommand
         args = @("-y", "@bitbonsai/mcpvault@latest", $vaultPath)
     }
 }