diff --git a/src/infra/local-tui-processes.test.ts b/src/infra/local-tui-processes.test.ts
index ae4ed8f1fe86..b8dcdf78e9b7 100644
--- a/src/infra/local-tui-processes.test.ts
+++ b/src/infra/local-tui-processes.test.ts
@@ -93,14 +93,28 @@ describe("local TUI processes", () => {
     const spawnSync = vi.fn().mockReturnValue({
       status: 0,
       stdout: JSON.stringify([
-        { ProcessId: 101, CommandLine: "C:\\openclaw.exe tui" },
-        { ProcessId: 102, CommandLine: "C:\\openclaw.exe gateway" },
-        { ProcessId: 103, CommandLine: '"C:\\Program Files\\OpenClaw\\openclaw.exe" chat' },
+        { ProcessId: 101, CommandLine: "C:\\openclaw.exe tui", OwnerSid: "S-1", CurrentSid: "S-1" },
+        {
+          ProcessId: 102,
+          CommandLine: "C:\\openclaw.exe gateway",
+          OwnerSid: "S-1",
+          CurrentSid: "S-1",
+        },
+        {
+          ProcessId: 103,
+          CommandLine: '"C:\\Program Files\\OpenClaw\\openclaw.exe" chat',
+          OwnerSid: "S-1",
+          CurrentSid: "S-1",
+        },
         {
           ProcessId: 104,
           CommandLine:
             '"C:\\Program Files\\nodejs\\node.exe" "C:\\Program Files\\OpenClaw\\openclaw.mjs" terminal',
+          OwnerSid: "S-1",
+          CurrentSid: "S-1",
         },
+        { ProcessId: 105, CommandLine: "C:\\openclaw.exe tui", OwnerSid: "S-2", CurrentSid: "S-1" },
+        { ProcessId: 106, CommandLine: "C:\\openclaw.exe tui", OwnerSid: null, CurrentSid: "S-1" },
       ]),
     });
 
@@ -227,4 +241,18 @@ describe("local TUI processes", () => {
     await waitForLocalTuiUpdate(vi.fn(async () => ({ lockPath: "test", release })));
     expect(release).toHaveBeenCalledOnce();
   });
+
+  it("keeps waiting after the bounded lock attempt while an update is still running", async () => {
+    const release = vi.fn(async () => {});
+    const timeout = Object.assign(new Error("busy"), { code: "file_lock_timeout" });
+    const acquireLock = vi
+      .fn()
+      .mockRejectedValueOnce(timeout)
+      .mockResolvedValueOnce({ lockPath: "test", release });
+
+    await waitForLocalTuiUpdate(acquireLock);
+
+    expect(acquireLock).toHaveBeenCalledTimes(2);
+    expect(release).toHaveBeenCalledOnce();
+  });
 });
diff --git a/src/infra/local-tui-processes.ts b/src/infra/local-tui-processes.ts
index c3476f9575cb..d3682b5ee367 100644
--- a/src/infra/local-tui-processes.ts
+++ b/src/infra/local-tui-processes.ts
@@ -119,7 +119,7 @@ export function listLocalTuiProcesses(
       [
         "-NoProfile",
         "-Command",
-        "Get-CimInstance Win32_Process | Select-Object ProcessId,CreationDate,CommandLine | ConvertTo-Json -Compress",
+        "$currentSid=[Security.Principal.WindowsIdentity]::GetCurrent().User.Value; Get-CimInstance Win32_Process | ForEach-Object { $ownerSid=(Invoke-CimMethod -InputObject $_ -MethodName GetOwnerSid -ErrorAction SilentlyContinue).Sid; [pscustomobject]@{ProcessId=$_.ProcessId;CommandLine=$_.CommandLine;OwnerSid=$ownerSid;CurrentSid=$currentSid} } | ConvertTo-Json -Compress",
       ],
       { encoding: "utf8", killSignal: "SIGKILL", timeout: LOCAL_TUI_PROCESS_PROBE_TIMEOUT_MS },
     );
@@ -134,6 +134,8 @@ export function listLocalTuiProcesses(
         }
         const pidValue = Reflect.get(entry, "ProcessId");
         const commandValue = Reflect.get(entry, "CommandLine");
+        const ownerSidValue = Reflect.get(entry, "OwnerSid");
+        const currentSidValue = Reflect.get(entry, "CurrentSid");
         const pid = typeof pidValue === "number" ? pidValue : undefined;
         const command = typeof commandValue === "string" ? commandValue.trim() : undefined;
         const startTime = pid
@@ -141,6 +143,8 @@ export function listLocalTuiProcesses(
           : null;
         return pid &&
           pid !== (params.currentPid ?? process.pid) &&
+          typeof ownerSidValue === "string" &&
+          ownerSidValue === currentSidValue &&
           command &&
           isLocalTuiCommand(command, "win32")
           ? [{ pid, command, ...(startTime === null ? {} : { startTime: String(startTime) }) }]
@@ -309,6 +313,15 @@ export async function quiesceLocalTuiProcessesBeforeUpdate(
 export async function waitForLocalTuiUpdate(
   acquireLock: typeof acquireFileLock = acquireFileLock,
 ): Promise<void> {
-  const lock = await acquireLock(LOCAL_TUI_UPDATE_LOCK_PATH, LOCAL_TUI_UPDATE_LOCK_OPTIONS);
-  await lock.release();
+  for (;;) {
+    try {
+      const lock = await acquireLock(LOCAL_TUI_UPDATE_LOCK_PATH, LOCAL_TUI_UPDATE_LOCK_OPTIONS);
+      await lock.release();
+      return;
+    } catch (error) {
+      if (extractErrorCode(error) !== "file_lock_timeout") {
+        throw error;
+      }
+    }
+  }
 }