Win7 hosts 檔案被惡意竄改/損壞？標準內容還原 + 替換徹底修復

hosts 檔案 (C:\Windows\System32\drivers\etc\hosts) 被惡意軟體竄改、或誤刪導致網頁無法開啟？將檔案還原為 Microsoft 官方標準內容即可徹底修復。

修復步驟

1. 定位檔案：Win + R → C:\Windows\System32\drivers\etc → Enter。

2. 將 hosts 複製到桌面 → 記事本開啟。

3. 清空全部內容，貼上官方標準內容：

# Copyright (c) 1993-2009 Microsoft Corp.
#
# This is a sample HOSTS file used by Microsoft TCP/IP for Windows.
#
# This file contains the mappings of IP addresses to host names. Each
# entry should be kept on an individual line. The IP address should
# be placed in the first column followed by the corresponding host name.
# The IP address and the host name should be separated by at least one
# space.
#
# Additionally, comments (such as these) may be inserted on individual
# lines or following the machine name denoted by a '#' symbol.
#
# For example:
#
#       102.54.94.97     rhino.acme.com     # source server
#       38.25.63.10      x.acme.com         # x client host

# localhost name resolution is handled within DNS itself.
# 127.0.0.1       localhost
# ::1             localhost

4. 存檔 → 將修改後的 hosts 複製回 C:\Windows\System32\drivers\etc 覆蓋舊檔 (需管理員權限)。

補充：若無法覆蓋 (權限/被佔用)，可用 Unlocker 釋放鎖定、或進安全模式操作、或用 PE 環境替換。修復後瀏覽器網頁解析即恢復正常。

此法適用 WinXP/7/8/10/11/Server 所有版本，hosts 標準內容通用。