diff --git a/apps/desktop/src/components/DeactivationScreen.tsx b/apps/desktop/src/components/DeactivationScreen.tsx
index d65f43b..e4ba4c5 100644
--- a/apps/desktop/src/components/DeactivationScreen.tsx
+++ b/apps/desktop/src/components/DeactivationScreen.tsx
@@ -1,40 +1,40 @@
-import { RefreshCw, Mail } from "lucide-react"
+import { ShieldAlert, Mail } from "lucide-react"
 
 export function DeactivationScreen({ companyName }: { companyName?: string | null }) {
   return (
-    <div className="min-h-screen grid place-items-center bg-slate-100 p-6">
-      <div className="flex flex-col items-center gap-5 rounded-3xl border border-slate-200 bg-white px-8 py-10 shadow-xl">
+    <div className="min-h-screen grid place-items-center bg-gradient-to-b from-slate-50 via-slate-50 to-white p-6">
+      <div className="flex w-full max-w-[720px] flex-col items-center gap-6 rounded-2xl border border-slate-200 bg-white px-8 py-10 shadow-sm">
         <div className="flex flex-col items-center gap-3 text-center">
-          <div className="flex h-16 w-16 items-center justify-center rounded-full bg-neutral-900 text-white shadow-lg">
-            <RefreshCw className="size-7 animate-pulse" />
-          </div>
+          <span className="inline-flex items-center gap-2 rounded-full border border-rose-200 bg-rose-50 px-3 py-1 text-xs font-semibold text-rose-700">
+            <ShieldAlert className="size-4" /> Acesso bloqueado
+          </span>
           <h1 className="text-2xl font-semibold text-neutral-900">Máquina desativada</h1>
-          <p className="max-w-sm text-sm text-neutral-600">
-            Esta máquina foi desativada temporariamente por um administrador da Rever. Enquanto estiver nessa situação,
-            o acesso ao portal e o envio de informações ficam bloqueados.
+          <p className="max-w-md text-sm text-neutral-600">
+            Esta máquina foi desativada temporariamente pelos administradores. Enquanto isso, o acesso ao portal e o
+            envio de informações ficam indisponíveis.
           </p>
           {companyName ? (
-            <span className="rounded-full bg-slate-100 px-3 py-1 text-xs font-semibold text-neutral-700">
+            <span className="rounded-full border border-slate-200 bg-slate-50 px-3 py-1 text-xs font-semibold text-neutral-700">
               {companyName}
             </span>
           ) : null}
         </div>
-        <div className="w-full max-w-[360px] space-y-3 text-sm text-neutral-600">
-          <div className="rounded-2xl border border-slate-200 bg-slate-50 p-4">
-            <p className="font-medium text-neutral-800">Como proceder?</p>
-            <ul className="mt-2 space-y-2 text-neutral-600">
-              <li>
-                <span className="font-semibold text-neutral-800">1.</span> Caso precise restaurar o acesso, entre em contato com a equipe de suporte da Rever.
-              </li>
-              <li>
-                <span className="font-semibold text-neutral-800">2.</span> Informe o identificador desta máquina e peça a reativação.
-              </li>
+
+        <div className="w-full max-w-[520px] space-y-4">
+          <div className="rounded-xl border border-slate-200 bg-slate-50 p-4 text-sm text-neutral-700">
+            <p className="font-medium text-neutral-800">Como regularizar</p>
+            <ul className="mt-2 list-disc space-y-1 pl-5 text-neutral-600">
+              <li>Entre em contato com o suporte da Rever e solicite a reativação.</li>
+              <li>Informe o nome do computador e seus dados de contato.</li>
             </ul>
           </div>
-          <div className="flex flex-col items-center gap-2 rounded-2xl border border-dashed border-neutral-300 bg-neutral-50 px-4 py-3 text-center text-xs text-neutral-500">
-            <Mail className="size-4" />
-            suporte@rever.com.br
-          </div>
+
+          <a
+            href="mailto:suporte@rever.com.br"
+            className="mx-auto inline-flex items-center gap-2 rounded-full border border-black bg-black px-4 py-2 text-sm font-semibold text-white transition hover:bg-black/90"
+          >
+            <Mail className="size-4" /> Falar com o suporte
+          </a>
         </div>
       </div>
     </div>
diff --git a/src/lib/auth-client.tsx b/src/lib/auth-client.tsx
index 4e0c820..5cc579e 100644
--- a/src/lib/auth-client.tsx
+++ b/src/lib/auth-client.tsx
@@ -217,6 +217,57 @@ export function AuthProvider({ children }: { children: React.ReactNode }) {
     }
   }, [session?.user])
 
+  // Poll machine session periodically to reflect admin changes (e.g., deactivation)
+  useEffect(() => {
+    const shouldPoll = Boolean(session?.user?.role === "machine") || Boolean(machineContext)
+    if (!shouldPoll) return
+    let cancelled = false
+    const tick = async () => {
+      try {
+        const response = await fetch("/api/machines/session", { credentials: "include" })
+        if (!response.ok) return
+        const data = await response.json()
+        if (cancelled) return
+        const mc = data?.machine
+        if (mc && typeof mc === "object") {
+          setMachineContext((prev) => {
+            // only update when something changes to avoid re-renders
+            const next = {
+              machineId: mc.id,
+              tenantId: mc.tenantId,
+              persona: mc.persona ?? null,
+              assignedUserId: mc.assignedUserId ?? null,
+              assignedUserEmail: mc.assignedUserEmail ?? null,
+              assignedUserName: mc.assignedUserName ?? null,
+              assignedUserRole: mc.assignedUserRole ?? null,
+              companyId: mc.companyId ?? null,
+              isActive: (mc.isActive ?? true) as boolean,
+            } as MachineContext
+            return JSON.stringify(prev) === JSON.stringify(next) ? prev : next
+          })
+        }
+      } catch {
+        /* ignore transient errors */
+      }
+    }
+    const id = setInterval(tick, 15000)
+    // Also refresh when tab gains focus
+    const onFocus = () => tick()
+    if (typeof window !== "undefined") {
+      window.addEventListener("focus", onFocus)
+      document.addEventListener("visibilitychange", onFocus)
+    }
+    tick()
+    return () => {
+      cancelled = true
+      clearInterval(id)
+      if (typeof window !== "undefined") {
+        window.removeEventListener("focus", onFocus)
+        document.removeEventListener("visibilitychange", onFocus)
+      }
+    }
+  }, [session?.user?.role, machineContext])
+
   useEffect(() => {
     if (!session?.user || session.user.role === "machine" || convexUserId) return