Girl with kid

Offer for existing members: Upgrade for Free*

Cybercrime has evolved. Our protection has too. *For the remainder of your subscription. Terms apply.

適用於 Windows

Norton installation does not start after completing the download on Windows

This issue appears when you install the new Norton product over an existing version of a Norton product. To fix this problem, uninstall the existing version and then install the newly purchased version of the Norton product.

Run the Norton Remove and Reinstall tool

If you have Norton Family installed, uninstall it before you run the Norton Remove and Reinstall tool.

  1. Download the Norton Remove and Reinstall tool.

    Save the file to the Windows desktop. On some browsers, the file is automatically saved to its default location.

  2. To open the Downloads window in your browser, press the Ctrl + J key.

  3. Double-click the NRnR icon.

  4. Read the license agreement, and click Agree.

  5. Click Advanced Options.

  6. Click Remove Only.

  7. Click Remove.

  8. Click Restart Now.

    After the computer restarts, download and install your Norton device security product again. For detailed instructions, read Download and install your Norton device security

文件識別碼 (ID): v67735351
上次修改時間: 04/24/2025

此文章對您是否有幫助?

Need more help?

下載
管理我的帳戶
購買及續購
連絡我們
支援詐騙
Norton 救援工具
是否覺得感染病毒?
Windows 發生啟動問題