diff --git a/tests/test_app.py b/tests/test_app.py
index a2436ec..398b286 100644
--- a/tests/test_app.py
+++ b/tests/test_app.py
@@ -1,3 +1,4 @@
+import uuid
 from pathlib import Path
 from urllib.parse import unquote
 
@@ -220,3 +221,36 @@ def test_vm_create_disk_bigger_than_free_space_needs_confirmation(logged_in, dat
 
     response = logged_in.post("/vm/create", data={**form, "name": "small", "disk_size": 20}, follow_redirects=False)
     assert response.status_code == 303 and "--check" not in started[1]
+
+
+def failed_create(data_dirs, name, disk=True, **extra):
+    """Операция создания машины, у которой virt-install завершился с ошибкой."""
+    disk_path = data_dirs["images"] / f"{name}.qcow2"
+    if disk:
+        disk_path.write_bytes(b"QFI\xfb")
+    operation = {"id": str(uuid.uuid4()), "type": "vm_create", "title": f"Создание VM {name}", "status": "queued", "progress": 0, "message": "", "created_at": app.utc_now(), "updated_at": app.utc_now(), "vm_name": name, "disk_path": str(disk_path), "network_mode": "bridge", **extra}
+    app.write_operation(operation)
+    app.run_operation_worker(operation["id"], ["bash", "-c", "echo 'ERROR    The requested volume capacity will exceed the available pool space'; exit 1"])
+    return app.read_operation(operation["id"]), disk_path
+
+
+def test_failed_vm_create_cleans_up_and_offers_retry(logged_in, data_dirs):
+    """Страница упавшей задачи предлагала «Открыть экран машины», хотя машины нет; недосозданный диск мешал повтору."""
+    operation, disk_path = failed_create(data_dirs, "smk", iso_path=str(data_dirs["iso"] / "smk-server-_1.iso"))
+    assert operation["status"] == "error" and "ничего не осталось" in operation["message"]
+    assert not disk_path.exists() and "Недосозданный диск smk.qcow2 удалён" in operation["log_tail"]
+    html = logged_in.get(f"/operations/{operation['id']}").text
+    assert 'data-op-done="success" hidden' in html
+    assert 'href="/vm/create?iso=smk-server-_1.iso"' in html and "Создать заново" in html
+
+
+def test_failed_create_of_existing_vm_keeps_its_disk(logged_in, data_dirs):
+    operation, disk_path = failed_create(data_dirs, "web01")  # машина определена в libvirt: её диск не трогаем
+    assert disk_path.exists() and "ничего не осталось" not in operation["message"]
+    html = logged_in.get(f"/operations/{operation['id']}").text
+    assert "Создать заново" not in html and 'href="/vm/web01">Перейти к машине' in html
+
+
+def test_operation_page_reveals_only_buttons_for_its_result():
+    script = (Path(__file__).resolve().parents[1] / "web" / "static" / "panel.js").read_text()
+    assert '$$(`[data-op-done="${status}"]`)' in script and "$$('[data-op-done]')" not in script
diff --git a/web/app.py b/web/app.py
index 99c971c..87557af 100644
--- a/web/app.py
+++ b/web/app.py
@@ -294,6 +294,17 @@ def progress_from_line(current: int, line: str) -> int:
     return current
 
 
+def remove_unfinished_disk(operation_id: str, disk_path: str) -> None:
+    """Машина не появилась, а её диск (из готового образа он создаётся до virt-install) остался:
+    удаляем его, иначе повторное создание под тем же названием упрётся в «Диск уже существует»."""
+    disk = Path(disk_path)
+    if not disk_path or disk.parent.resolve() != IMAGES_DIR.resolve() or not disk.is_file():
+        return
+    disk.unlink(missing_ok=True)
+    run_cmd(["virsh", "pool-refresh", "virtuality-images"], timeout=20)
+    append_operation_log(operation_id, f"Недосозданный диск {disk.name} удалён.")
+
+
 def run_operation_worker(operation_id: str, cmd: list[str]) -> None:
     operation = read_operation(operation_id)
     if not operation:
@@ -322,7 +333,13 @@ def run_operation_worker(operation_id: str, cmd: list[str]) -> None:
             append_operation_log(operation_id, f"virt-install завершился с ошибкой. Exit code: {exit_code}")
             if fresh.get("vm_name") and fresh.get("network_mode") == "nat":
                 network_core.release_nat_address(fresh["vm_name"])
-            update_operation(fresh, status="error", progress=100, exit_code=exit_code, message=f"virt-install завершился с ошибкой: {exit_code}", finished_at=utc_now())
+            vm_left = bool(fresh.get("vm_name")) and vm_exists(fresh["vm_name"])
+            if not vm_left:
+                remove_unfinished_disk(operation_id, fresh.get("disk_path") or "")
+            message = "Машину создать не удалось, причина в журнале ниже."
+            if not vm_left:
+                message += " На сервере от неё ничего не осталось, её можно создать заново под тем же названием."
+            update_operation(fresh, status="error", progress=100, exit_code=exit_code, message=message, finished_at=utc_now())
     except Exception as exc:
         fresh = read_operation(operation_id) or operation
         append_operation_log(operation_id, f"Ошибка запуска операции: {exc}")
@@ -1737,7 +1754,18 @@ def operation_detail_page(request: Request, operation_id: str):
     operation = read_operation(operation_id)
     if not operation:
         return RedirectResponse(url="/operations", status_code=303)
-    return templates.TemplateResponse(request, "operation_detail.html", {"app_name": APP_NAME, "user": AUTH_USER, "operation": operation, "operation_css": operation_css})
+    vm_name = str(operation.get("vm_name") or "")
+    vm_present = valid_vm_name(vm_name) and vm_exists(vm_name)
+    return templates.TemplateResponse(request, "operation_detail.html", {"app_name": APP_NAME, "user": AUTH_USER, "operation": operation, "operation_css": operation_css, "vm_present": vm_present, "retry_url": vm_create_retry_url(operation)})
+
+
+def vm_create_retry_url(operation: dict[str, Any]) -> str:
+    """Форма создания машины с тем же установочным образом или готовым образом, что у неудачной попытки."""
+    if operation.get("iso_path"):
+        return "/vm/create?iso=" + quote(Path(operation["iso_path"]).name)
+    if operation.get("disk_image_path"):
+        return "/vm/create?image=" + quote(Path(operation["disk_image_path"]).name)
+    return "/vm/create"
 
 
 @app.get("/api/operations")
@@ -1924,7 +1952,7 @@ def vm_create_submit(request: Request, name: str = Form(...), memory: int = Form
 
     success_message = "Машина создана" + (f". {login_hint}" if login_hint else "") + (f". Адрес в сети машин: {nat_ip}" if nat_ip else "")
     operation_id = str(uuid.uuid4())
-    operation = {"id": operation_id, "type": "vm_create", "title": f"Создание VM {name}", "status": "queued", "progress": 0, "message": "Операция поставлена в очередь", "created_at": utc_now(), "updated_at": utc_now(), "created_by": AUTH_USER, "vm_name": name, "disk_path": str(disk_path), "iso_path": iso_path, "host_profile": profile.get("profile"), "guest_arch": selected_arch, "boot_order": selected_boot_order, "network_mode": network_mode, "network": network_arg, "bridge": bridge, "memory": memory, "vcpus": vcpus, "disk_size": disk_size, "os_type": os_type, "cloud_init_user": ci_user if use_cloud_init else "", "nat_ip": nat_ip or "", "seed_file": seed_file, "success_message": success_message, "cmd": " ".join(cmd)}
+    operation = {"id": operation_id, "type": "vm_create", "title": f"Создание VM {name}", "status": "queued", "progress": 0, "message": "Операция поставлена в очередь", "created_at": utc_now(), "updated_at": utc_now(), "created_by": AUTH_USER, "vm_name": name, "disk_path": str(disk_path), "iso_path": iso_path, "disk_image_path": disk_image_path if source_type == "disk_image" else "", "host_profile": profile.get("profile"), "guest_arch": selected_arch, "boot_order": selected_boot_order, "network_mode": network_mode, "network": network_arg, "bridge": bridge, "memory": memory, "vcpus": vcpus, "disk_size": disk_size, "os_type": os_type, "cloud_init_user": ci_user if use_cloud_init else "", "nat_ip": nat_ip or "", "seed_file": seed_file, "success_message": success_message, "cmd": " ".join(cmd)}
     start_background_operation(operation, cmd)
     return RedirectResponse(url=f"/operations/{operation_id}", status_code=303)
 
diff --git a/web/static/panel.js b/web/static/panel.js
index 049c878..95022eb 100644
--- a/web/static/panel.js
+++ b/web/static/panel.js
@@ -383,7 +383,7 @@
         messageEl.textContent = op.message || '';
         if (logEl) { const atBottom = logEl.scrollHeight - logEl.scrollTop - logEl.clientHeight < 40; logEl.textContent = op.log_tail || ''; if (atBottom) logEl.scrollTop = logEl.scrollHeight; }
         render();
-        if (done()) { clearInterval(timer); clearInterval(tick); if (!wasDone) { toast(status === 'success' ? 'Операция завершена' : 'Операция завершилась с ошибкой', status === 'success' ? 'success' : 'danger'); $$('[data-op-done]').forEach((el) => { el.hidden = false; }); } }
+        if (done()) { clearInterval(timer); clearInterval(tick); if (!wasDone) { toast(status === 'success' ? 'Операция завершена' : 'Операция завершилась с ошибкой', status === 'success' ? 'success' : 'danger'); $$(`[data-op-done="${status}"]`).forEach((el) => { el.hidden = false; }); if (status === 'error' && $('[data-op-done="error"][data-op-reload]')) setTimeout(() => location.reload(), 1500); } }
       } catch (_) {}
     };
     const timer = setInterval(poll, 1500);
diff --git a/web/templates/operation_detail.html b/web/templates/operation_detail.html
index 784430b..8c12fce 100644
--- a/web/templates/operation_detail.html
+++ b/web/templates/operation_detail.html
@@ -25,10 +25,17 @@
         <div class="progress lg {{ 'success' if operation.status == 'success' else 'danger' if operation.status == 'error' else '' }}" data-op="progress" style="height:10px"><span data-op="bar" style="width:{{ operation.progress|default(0) }}%"></span></div>
         <p class="muted" data-op="message">{{ operation.message }}</p>
         {% if operation.vm_name %}
-          <div class="row" data-op-done {% if operation.status != 'success' %}hidden{% endif %}>
+          <div class="row" data-op-done="success" {% if operation.status != 'success' %}hidden{% endif %}>
             <a class="btn btn-primary" href="/vm/{{ operation.vm_name }}/console" target="_blank" rel="noopener">{{ icon('monitor') }}Открыть экран машины</a>
             <a class="btn" href="/vm/{{ operation.vm_name }}">Перейти к машине</a>
           </div>
+          <div class="row" data-op-done="error" {% if operation.type == 'vm_create' %}data-op-reload{% endif %} {% if operation.status != 'error' %}hidden{% endif %}>
+            {% if operation.type == 'vm_create' and not vm_present %}
+              <a class="btn btn-primary" href="{{ retry_url }}">{{ icon('rotate-cw') }}Создать заново</a>
+            {% elif vm_present %}
+              <a class="btn" href="/vm/{{ operation.vm_name }}">Перейти к машине</a>
+            {% endif %}
+          </div>
         {% endif %}
       </div>
     </article>