diff --git a/src/license/api.mjs b/src/license/api.mjs
index 6e71b07..f271a80 100644
--- a/src/license/api.mjs
+++ b/src/license/api.mjs
@@ -61,6 +61,14 @@ export async function createProductKeys(adminToken, body) {
   });
 }
 
+/** @param {string} adminToken @param {string} key */
+export async function revokeProductKey(adminToken, key) {
+  return request(adminToken, 'v1/admin/revoke', {
+    method: 'POST',
+    body: JSON.stringify({ key }),
+  });
+}
+
 /** @param {string} adminToken @param {string} key */
 export async function deleteProductKey(adminToken, key) {
   return request(adminToken, 'v1/admin/product-keys/delete', {
diff --git a/src/main.js b/src/main.js
index a0aab7d..32dda1b 100644
--- a/src/main.js
+++ b/src/main.js
@@ -8,6 +8,7 @@ import {
   deleteProductKey,
   getDownloadStats,
   listLicenses,
+  revokeProductKey,
   LicenseApiError,
 } from './license/api.mjs';
 import { loadLicenseSettings, saveLicenseSettings } from './license/settings.mjs';
@@ -109,6 +110,16 @@ app.whenReady().then(() => {
     }
   });
 
+  ipcMain.handle('license.revokeProductKey', async (_e, key) => {
+    try {
+      const { adminToken } = loadLicenseSettings(app.getPath('userData'));
+      await revokeProductKey(adminToken, String(key ?? ''));
+      return { ok: true };
+    } catch (err) {
+      return licenseError(err);
+    }
+  });
+
   ipcMain.handle('license.deleteProductKey', async (_e, key) => {
     try {
       const { adminToken } = loadLicenseSettings(app.getPath('userData'));
diff --git a/src/preload.cjs b/src/preload.cjs
index d5ffb7c..87db3d6 100644
--- a/src/preload.cjs
+++ b/src/preload.cjs
@@ -27,6 +27,9 @@ contextBridge.exposeInMainWorld('license', {
     const res = unwrapLicense(await ipcRenderer.invoke('license.createProductKeys', body));
     return res.result;
   },
+  revokeProductKey: async (key) => {
+    unwrapLicense(await ipcRenderer.invoke('license.revokeProductKey', key));
+  },
   deleteProductKey: async (key) => {
     unwrapLicense(await ipcRenderer.invoke('license.deleteProductKey', key));
   },
diff --git a/src/renderer/pages/licenseList.mjs b/src/renderer/pages/licenseList.mjs
index a992a03..56317b0 100644
--- a/src/renderer/pages/licenseList.mjs
+++ b/src/renderer/pages/licenseList.mjs
@@ -19,6 +19,8 @@ export function renderLicenseListPage(root) {
 
   /** @type {import('../../license/models.mjs').LicenseEntry | null} */
   let confirmDelete = null;
+  /** @type {import('../../license/models.mjs').LicenseEntry | null} */
+  let confirmRevoke = null;
 
   function showError(msg) {
     if (!msg) {
@@ -30,9 +32,53 @@ export function renderLicenseListPage(root) {
     $listError.textContent = msg;
   }
 
-  function renderModal() {
-    const existing = document.getElementById('delete-modal');
-    if (existing) existing.remove();
+  function closeModal(id) {
+    document.getElementById(id)?.remove();
+  }
+
+  function renderRevokeModal() {
+    closeModal('revoke-modal');
+    if (!confirmRevoke) return;
+
+    const backdrop = document.createElement('div');
+    backdrop.id = 'revoke-modal';
+    backdrop.className = 'modal-backdrop';
+    backdrop.innerHTML = `
+      <div class="modal">
+        <h2>Отозвать лицензию?</h2>
+        <p>Ключ <strong>${confirmRevoke.key}</strong> перестанет работать у всех пользователей. Запись останется в списке.</p>
+        <div class="modal-actions">
+          <button type="button" class="secondary" id="cancelRevoke">Отмена</button>
+          <button type="button" class="secondary danger" id="confirmRevoke">Отозвать</button>
+        </div>
+      </div>
+    `;
+    document.body.appendChild(backdrop);
+
+    backdrop.querySelector('#cancelRevoke')?.addEventListener('click', () => {
+      confirmRevoke = null;
+      backdrop.remove();
+    });
+
+    backdrop.querySelector('#confirmRevoke')?.addEventListener('click', async () => {
+      const key = confirmRevoke?.key;
+      if (!key || !window.license) return;
+      backdrop.remove();
+      confirmRevoke = null;
+      $refreshBtn.disabled = true;
+      try {
+        await window.license.revokeProductKey(key);
+        await loadLicenses();
+      } catch (err) {
+        showError(err instanceof Error ? err.message : String(err));
+      } finally {
+        $refreshBtn.disabled = false;
+      }
+    });
+  }
+
+  function renderDeleteModal() {
+    closeModal('delete-modal');
     if (!confirmDelete) return;
 
     const backdrop = document.createElement('div');
@@ -84,9 +130,10 @@ export function renderLicenseListPage(root) {
         const devices = lic.activatedDevices?.length
           ? `<div class="license-detail">deviceId: ${lic.activatedDevices.join(', ')}</div>`
           : '';
-        const deleteBtn = !lic.revoked
-          ? `<div class="license-actions"><button type="button" class="secondary danger" data-delete="${lic.key}">Удалить</button></div>`
+        const revokeBtn = !lic.revoked
+          ? `<button type="button" class="secondary" data-revoke="${lic.key}">Отозвать</button>`
           : '';
+        const deleteBtn = `<button type="button" class="secondary danger" data-delete="${lic.key}">Удалить</button>`;
         return `
           <div class="license-card${lic.revoked ? ' revoked' : ''}">
             <div class="license-key">${lic.key}</div>
@@ -96,7 +143,7 @@ export function renderLicenseListPage(root) {
             <div class="license-detail">Срок: ${formatLicenseExpiry(lic)}</div>
             <div class="license-detail">Статус: ${lic.revoked ? 'Отозвана' : 'Активна'}</div>
             ${devices}
-            ${deleteBtn}
+            <div class="license-actions">${revokeBtn}${deleteBtn}</div>
           </div>
         `;
       })
@@ -104,13 +151,24 @@ export function renderLicenseListPage(root) {
 
     $listContent.innerHTML = `<div class="license-list">${html}</div>`;
 
+    $listContent.querySelectorAll('[data-revoke]').forEach((btn) => {
+      btn.addEventListener('click', () => {
+        const key = btn.getAttribute('data-revoke');
+        const lic = licenses.find((l) => l.key === key);
+        if (lic) {
+          confirmRevoke = lic;
+          renderRevokeModal();
+        }
+      });
+    });
+
     $listContent.querySelectorAll('[data-delete]').forEach((btn) => {
       btn.addEventListener('click', () => {
         const key = btn.getAttribute('data-delete');
         const lic = licenses.find((l) => l.key === key);
         if (lic) {
           confirmDelete = lic;
-          renderModal();
+          renderDeleteModal();
         }
       });
     });
@@ -139,6 +197,7 @@ export function renderLicenseListPage(root) {
   void loadLicenses();
 
   return () => {
-    document.getElementById('delete-modal')?.remove();
+    closeModal('delete-modal');
+    closeModal('revoke-modal');
   };
 }
diff --git a/src/styles/app.css b/src/styles/app.css
index 5685967..b747edb 100644
--- a/src/styles/app.css
+++ b/src/styles/app.css
@@ -17,22 +17,30 @@
   box-sizing: border-box;
 }
 
+html,
+body {
+  height: 100%;
+  overflow: hidden;
+}
+
 body {
   margin: 0;
   font-family: 'Segoe UI', system-ui, sans-serif;
   background: var(--bg);
   color: var(--text);
-  min-height: 100vh;
 }
 
 .app-shell {
   display: flex;
-  min-height: 100vh;
+  height: 100vh;
+  overflow: hidden;
 }
 
 .sidebar {
   width: 200px;
   flex-shrink: 0;
+  height: 100vh;
+  overflow: hidden;
   border-right: 1px solid var(--border);
   background: rgba(0, 0, 0, 0.2);
   padding: 20px 0;
@@ -90,7 +98,9 @@ body {
 
 .main {
   flex: 1;
-  overflow: auto;
+  min-height: 0;
+  overflow-x: hidden;
+  overflow-y: auto;
   padding: 24px 28px 32px;
   max-width: 760px;
 }
@@ -408,6 +418,7 @@ button.danger:hover:not(:disabled) {
   margin-top: 12px;
   display: flex;
   justify-content: flex-end;
+  gap: 8px;
 }
 
 .empty,