電腦重置后Windows無法啟動，多數(shù)因引導(dǎo)損壞、文件丟失或硬件變動。1.先檢查BIOS啟動順序是否正確，將硬盤設(shè)為第一啟動項并拔掉多余外設(shè)；2.通過WinRE運行bootrec命令修復(fù)引導(dǎo)記錄；3.使用DISM和SFC工具修復(fù)系統(tǒng)文件；4.若無效則重新安裝系統(tǒng)，提前備份數(shù)據(jù)并制作U盤啟動盤進行安裝。
電腦重置后 Windows 無法啟動，這種情況其實并不少見。多數(shù)時候是引導(dǎo)記錄損壞、系統(tǒng)文件丟失或者硬件配置變動引起的。遇到這類問題，先別急著送修，有些常見的修復(fù)方法自己就能搞定。
1. 檢查啟動順序是否正確
重置系統(tǒng)后，BIOS 中的啟動順序可能會被重置或更改。如果硬盤不在第一啟動項，自然就無法進入系統(tǒng)。
- 進入 BIOS 的方式通常是開機時按 F2、Del 或 Esc（不同品牌略有差異）
- 找到 Boot 選項卡，確認硬盤（比如 Windows Boot Manager）排在第一位
- 保存設(shè)置并退出，看看能不能正常啟動
有時候 USB 設(shè)備插著也可能干擾啟動順序，拔掉不必要的外設(shè)再試試。
2. 使用恢復(fù)環(huán)境修復(fù)啟動問題
Windows 自帶的恢復(fù)環(huán)境（WinRE）可以幫你運行一些基礎(chǔ)修復(fù)命令。
- 開機時反復(fù)按 F8 或 Shift + Restart 進入恢復(fù)界面
- 選擇“疑難解答” → “高級選項” → “命令提示符”
- 輸入以下三條命令，每輸入一條按一次回車：
bootrec /fixmbr bootrec /fixboot bootrec /rebuildbcd
這會嘗試修復(fù)主引導(dǎo)記錄和啟動配置數(shù)據(jù)。完成后輸入 exit 并回車，然后重啟看看有沒有改善。
3. 系統(tǒng)文件損壞怎么辦
如果只是部分系統(tǒng)文件損壞，可以用 DISM 和 SFC 工具來修復(fù)。
- 在命令提示符中依次運行下面幾條命令：
DISM /Online /Cleanup-Image /RestoreHealth sfc /scannow /offbootdir=C:\ /offwindir=C:\Windows
注意：執(zhí)行這些命令的前提是你已經(jīng)能進入恢復(fù)環(huán)境，并且系統(tǒng)盤還能訪問。如果提示路徑不對，可以根據(jù)實際盤符調(diào)整。
4. 最后一招：重新安裝系統(tǒng)
如果以上方法都試過還是不行，那可能系統(tǒng)分區(qū)已經(jīng)出錯嚴重了。這時候只能考慮重新安裝 Windows。
- 準備一個 U 盤制作啟動盤（可以用微軟官方的 Media Creation Tool）
- 插入 U 盤，進入 BIOS 設(shè)置從 U 盤啟動
- 按照提示安裝系統(tǒng)，可以選擇保留個人文件，或者完全清空重裝
注意：安裝前盡量備份重要數(shù)據(jù)，雖然重裝系統(tǒng)不一定需要格式化數(shù)據(jù)盤，但風(fēng)險還是有的。
基本上就這些常見處理辦法。不是特別復(fù)雜，但每個步驟都不能跳過細節(jié)，尤其是命令行操作，打錯一個字母可能就沒反應(yīng)。如果你不確定自己在做什么，建議找個懂的人一起操作，或者直接去售后檢查一下是不是硬盤本身有問題。
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