最近 Norton 會判斷 Adguard 內容包含 PUS.Superfluss 低風險項目，而直接將 Adguard主程式以及登錄檔刪除。
刪除完成之後，直接使用 adguardInstaller.exe 可能無法重新安裝成功，就算移除也會被 Norton 重新判斷為是低風險項目。
因此重新安裝的方式如下：
一、重新開機
- Norton 會提示告知要移除有風險的項目需要重新開機，請先按照指示完成重新開機
- 重新開機之後，Adguard 主程式會被移除，捷徑會顯示找不到檔案
二、設定 Norton 端的例外
設定 > 防毒 > 掃描與風險 > 排除/低風險 > 要從掃描排除的項目 > 架構 [+] > 新增資料夾 > "C:\Program Files (x86)\AdGuard\"
設定 > 防毒 > 掃描與風險 > 排除/低風險 > 要從自動防護、程序檔控制、行為防護及下載鑑識偵測排除的項目 > 架構 [+] > "C:\Program Files (x86)\AdGuard\"
三、移除並重新安裝 Adguard
- 請使用控制台移除 Adguard，不要勾選「刪除設定」，直到移除完成
- 移除完成之後，重新安裝
adguardInstaller.exe即可 - 若是 Norton 沒有繼續跳出偵測到風險即可
問與答：
- 為何第三步驟不直接使用
adguardInstaller.exe安裝，而是要先移除
** 雖然 Adguard主程式被 Norton 移除，但是檔案大多數還在的狀況下，使用adguardInstaller.exe會判斷程式已經完整安裝而不會重新安裝
參考
Abstract: Recently, Norton has been flagging Adguard content as containing the PUS.Superfluss low-risk item, leading to the direct deletion of both the Adguard main program and registry files.
Upon completion of the removal process, attempting to reinstall Adguard using adguardInstaller.exe may not be successful, as Norton continues to recognize it as a low-risk item even after removal.
Therefore, the recommended reinstallation process is as follows:
- Reboot your computer Norton will prompt you to restart the system to remove the flagged items. Please follow the instructions and complete the restart. After the reboot, the Adguard main program will be removed, and shortcuts will display as unavailable.
Set up exclusions in Norton Navigate to Settings > Antivirus > Scans and Risks > Exclusions/Low Risks > Items to Exclude from Scans > Add Folder > "C:\Program Files (x86)\AdGuard"
Settings > Antivirus > Scans and Risks > Exclusions/Low Risks > Items to Exclude from Auto-Protect, SONAR, and Download Intelligence Detection > Add Folder > "C:\Program Files (x86)\AdGuard"
- Remove and reinstall Adguard Use the control panel to remove Adguard, ensuring not to select "Delete settings," and wait for the removal to complete.
- Once removed, proceed to reinstall Adguard using adguardInstaller.exe. If Norton does not raise any further risk detection alerts, the reinstallation is successful.
Q&A: Why should we remove Adguard before reinstalling using adguardInstaller.exe instead of reinstalling directly? Although Norton removes the Adguard main program, most files are still present. Reinstalling directly with adguardInstaller.exe would not trigger a full reinstallation, as the program may recognize it as already installed.