[{"data":1,"prerenderedAt":616},["ShallowReactive",2],{"blog-article-\u002Ftw\u002Fblog\u002Ffind-duplicate-files-windows-11":3},{"id":4,"title":5,"author":6,"body":7,"category":596,"cover":597,"coverAlt":598,"description":599,"draft":600,"extension":601,"meta":602,"navigation":603,"path":604,"publishedAt":605,"seo":606,"stem":607,"tags":608,"translationKey":614,"updatedAt":605,"__hash__":615},"articles_tw\u002Ftw\u002Fblog\u002Ffind-duplicate-files-windows-11.md","Windows 11 如何找出並安全刪除重複檔案","Harry",{"type":8,"value":9,"toc":574},"minimark",[10,18,33,38,45,48,64,79,83,86,164,167,171,174,230,239,242,246,253,256,270,277,280,284,287,290,307,310,314,388,391,395,406,415,421,424,431,439,443,450,453,470,478,481,486,489,493,496,500,503,507,510,514,517,521,524,527,566],[11,12,13,14],"p",{},"要在 Windows 11 找出重複檔案，建議先從下載、文件、圖片、影片，以及以前匯入的備份等個人資料夾開始。你可以先用檔案總管依名稱、類型、大小和修改日期縮小範圍，再開啟檔案並比較完整路徑。",[15,16,17],"strong",{},"名稱或大小相同只能表示「可能重複」，不代表內容一定完全相同。",[11,19,20,21,25,26,25,29,32],{},"不要把 ",[22,23,24],"code",{},"C:\\Windows","、",[22,27,28],{},"Program Files",[22,30,31],{},"ProgramData"," 或應用程式安裝資料夾裡的同名檔案，當成一般重複檔案刪除。Windows 和應用程式可能刻意在不同位置保存相同元件。",[34,35,37],"h2",{"id":36},"什麼才算重複檔案","什麼才算重複檔案？",[11,39,40,41,44],{},"本文所說的",[15,42,43],{},"完全重複檔案","，是指檔案內容完全相同。它們的檔名、所在資料夾和修改時間可以不同。",[11,46,47],{},"以下情況不一定是完全重複：",[49,50,51,55,58,61],"ul",{},[52,53,54],"li",{},"看起來相似，但分別拍攝的兩張照片；",[52,56,57],{},"檔名相同，內容卻經過不同修改的文件；",[52,59,60],{},"影片原始檔與壓縮後的輸出版本；",[52,62,63],{},"原始檔案與刻意保存的備份副本。",[11,65,66,67,70,71,74,75,78],{},"只看檔名刪除很容易誤判。",[22,68,69],{},"photo.jpg"," 和 ",[22,72,73],{},"photo (1).jpg"," 可能完全一樣，但兩個資料夾中的 ",[22,76,77],{},"預算.xlsx"," 也可能是不同版本。要確認完全重複，最後仍要比較檔案內容。",[34,80,82],{"id":81},"重複檔案通常出現在哪裡","重複檔案通常出現在哪裡？",[11,84,85],{},"先檢查經常下載、複製和輸出檔案的個人資料夾。",[87,88,89,105],"table",{},[90,91,92],"thead",{},[93,94,95,99,102],"tr",{},[96,97,98],"th",{},"位置",[96,100,101],{},"常見重複內容",[96,103,104],{},"需要確認的事情",[106,107,108,120,131,142,153],"tbody",{},[93,109,110,114,117],{},[111,112,113],"td",{},"下載",[111,115,116],{},"重複下載的安裝程式、壓縮檔、PDF 和郵件附件",[111,118,119],{},"檔案是否仍有用途，舊安裝程式是否已被新版取代",[93,121,122,125,128],{},[111,123,124],{},"圖片",[111,126,127],{},"重複匯入的照片、編輯後輸出的檔案、通訊軟體下載的圖片",[111,129,130],{},"解析度、中繼資料和編輯內容是否不同",[93,132,133,136,139],{},[111,134,135],{},"影片",[111,137,138],{},"螢幕錄影、影片輸出和重複下載的媒體",[111,140,141],{},"哪一份是原始檔，哪一份是壓縮或預覽版本",[93,143,144,147,150],{},[111,145,146],{},"文件和桌面",[111,148,149],{},"在多個專案間複製、檔名帶有「副本」或數字的文件",[111,151,152],{},"開啟檔案，並確認所在資料夾是否仍在使用",[93,154,155,158,161],{},[111,156,157],{},"外接硬碟和匯入的備份",[111,159,160],{},"不同時間保存的相同個人檔案",[111,162,163],{},"這份副本是否仍是備份計畫的一部分",[11,165,166],{},"備份原本就需要保留一份額外副本。如果另一顆硬碟上的檔案是唯一備份，把它當成垃圾刪除，就失去了備份的作用。",[34,168,170],{"id":169},"方法一用檔案總管找出明顯副本","方法一：用檔案總管找出明顯副本",[11,172,173],{},"如果大致知道重複檔案在哪個資料夾，檔案總管就能完成第一輪篩選。",[175,176,177,184,193,200,216,223],"ol",{},[52,178,179,180,183],{},"按下 ",[15,181,182],{},"Windows + E"," 開啟檔案總管。",[52,185,186,187,189,190,192],{},"先進入",[15,188,113],{},"或",[15,191,124],{},"等明確資料夾，不要一開始就搜尋整台電腦。",[52,194,195,196,199],{},"切換成",[15,197,198],{},"詳細資料","檢視。",[52,201,202,203,25,206,25,209,189,212,215],{},"依",[15,204,205],{},"名稱",[15,207,208],{},"大小",[15,210,211],{},"類型",[15,213,214],{},"修改日期","排序。",[52,217,218,219,222],{},"使用搜尋框和",[15,220,221],{},"搜尋選項","，再依檔案類型、大小或日期縮小結果。",[52,224,225,226,229],{},"預覽或開啟疑似副本，然後透過",[15,227,228],{},"內容","比較完整路徑。",[11,231,232,25,235,238],{},[22,233,234],{},"報告 - 副本.pdf",[22,236,237],{},"照片 (1).jpg","，或多個不同版本的安裝程式都值得檢查，但這些命名方式本身無法證明內容相同。",[11,240,241],{},"從「本機」搜尋的範圍較大，速度也較慢。先檢查一個明確資料夾，比較容易理解每個檔案為什麼會出現在那裡。檔案總管可以找出疑似副本，卻不會自動證明兩份檔案的內容完全相同。",[34,243,245],{"id":244},"方法二用-powershell-確認兩份檔案是否相同","方法二：用 PowerShell 確認兩份檔案是否相同",[11,247,248,249,252],{},"如果懷疑兩份檔案完全一樣，但檔名不同，可以比較它們的雜湊值。雜湊值由檔案內容計算而來；PowerShell 的 ",[22,250,251],{},"Get-FileHash"," 預設使用 SHA-256。",[11,254,255],{},"開啟 PowerShell，分別對兩份檔案執行指令：",[175,257,258,264],{},[52,259,260,261],{},"第一份檔案：",[22,262,263],{},"Get-FileHash -LiteralPath \"C:\\Users\\YourName\\Downloads\\report.pdf\"",[52,265,266,267],{},"疑似副本：",[22,268,269],{},"Get-FileHash -LiteralPath \"D:\\Backup\\report-copy.pdf\"",[11,271,272,273,276],{},"如果兩次輸出的 ",[22,274,275],{},"Hash"," 完全相同，代表檔案內容相同；如果不同，先保留兩份，直到確認差異為止。",[11,278,279],{},"這個方法適合核對少量重要檔案，不適合手動處理成千上萬張照片、影片和壓縮檔。雜湊值也不會告訴你應該保留哪個資料夾裡的版本。不要直接執行「自動刪除所有重複雜湊」的指令碼，因為專案資料夾、同步資料夾或備份中的那一份，可能才是需要保留的檔案。",[34,281,283],{"id":282},"如何決定要保留哪一份","如何決定要保留哪一份？",[11,285,286],{},"確認內容完全相同之後，應該根據檔案所在位置決定，而不是只看名稱或日期。",[11,288,289],{},"優先保留：",[49,291,292,295,298,301,304],{},[52,293,294],{},"位於你平常整理該類檔案的正式資料夾；",[52,296,297],{},"正被專案、媒體庫或應用程式使用；",[52,299,300],{},"檔名清楚，並保留你需要的中繼資料；",[52,302,303],{},"已經納入有效的備份流程；",[52,305,306],{},"不在暫存輸出或重複下載資料夾中。",[11,308,309],{},"檔案經過複製、下載或備份還原後，修改日期可能改變。「日期最新」不一定代表它就是最適合保留的版本。",[34,311,313],{"id":312},"哪些重複檔案可以處理","哪些重複檔案可以處理？",[87,315,316,329],{},[90,317,318],{},[93,319,320,323,326],{},[96,321,322],{},"通常可在確認後處理",[96,324,325],{},"需要先確認用途",[96,327,328],{},"不應當作一般重複檔案刪除",[106,330,331,344,361,377],{},[93,332,333,336,339],{},[111,334,335],{},"下載資料夾中重複的安裝程式和壓縮檔",[111,337,338],{},"OneDrive 等同步資料夾中的照片和影片",[111,340,341,343],{},[22,342,24],{}," 中的相同檔案",[93,345,346,349,352],{},[111,347,348],{},"已開啟並與原始檔比較過的輸出內容",[111,350,351],{},"影片、設計和開發專案使用的素材",[111,353,354,356,357,360],{},[22,355,28],{}," 或 ",[22,358,359],{},"Program Files (x86)"," 中的檔案",[93,362,363,366,369],{},[111,364,365],{},"被複製到已停用資料夾中的個人文件",[111,367,368],{},"備份磁碟和復原磁碟中的檔案",[111,370,371,356,373,376],{},[22,372,31],{},[22,374,375],{},"AppData"," 中用途不明的檔案",[93,378,379,382,385],{},[111,380,381],{},"多次手動匯入留下的額外副本",[111,383,384],{},"遊戲存檔、虛擬機器資料和應用程式媒體庫",[111,386,387],{},"無法確認由哪個應用程式管理的檔案",[11,389,390],{},"如果檔案會同步到雲端，刪除本機檔案也可能一併刪除雲端與其他裝置上的版本。操作前先查看同步狀態，並確認該雲端服務的刪除規則。",[34,392,394],{"id":393},"使用-mangodisk-依內容掃描完全重複的檔案","使用 MangoDisk 依內容掃描完全重複的檔案",[11,396,397,398,405],{},"當重複檔案散落在多個資料夾時，",[399,400,404],"a",{"href":401,"rel":402},"https:\u002F\u002Fmangodisk.app\u002Ftw",[403],"nofollow","MangoDisk"," 可以掃描一個本機磁碟或資料夾，並將內容完全相同的檔案放在同一組。即使檔名不同，也能識別為同一組重複檔案。",[11,407,408],{},[409,410],"img",{"alt":411,"decoding":412,"loading":413,"src":414},"Windows 版 MangoDisk 將內容完全相同的影片和圖片分組，顯示每一份檔案的路徑，並在每組保留一份","async","lazy","https:\u002F\u002Fassets.mangodisk.app\u002Fmedia\u002Farticles\u002Fduplicate-files-windows\u002Ftw\u002F01-mangodisk-duplicate-cleanup.jpg",[11,416,417],{},[418,419,420],"em",{},"每一組都會顯示副本數量、單一檔案大小、最多可釋放的空間，以及每份檔案的完整位置。畫面使用英文介面。",[11,422,423],{},"建議先選擇明確的掃描資料夾，並設定適當的檔案大小下限。大型影片、壓縮檔、磁碟映像檔和重複輸出的照片，通常比大量小檔案更值得優先檢查。",[11,425,426,427,430],{},"類型篩選可以只查看影片、音訊、圖片、文件、壓縮檔、安裝程式等內容。",[15,428,429],{},"智慧選取","會在每組至少保留一份，並選取其他副本，但它無法知道哪個資料夾對你最重要。刪除前仍要展開群組、比較所有路徑並調整選取項目。",[11,432,433,434,438],{},"完整操作請參考",[399,435,437],{"href":436},"\u002Ftw\u002Fdocs\u002Ffeatures\u002Fduplicate-files","重複檔案清理功能說明","。",[34,440,442],{"id":441},"重要重複檔案會被永久刪除","重要：重複檔案會被永久刪除",[11,444,445,446,449],{},"透過 MangoDisk 確認刪除的重複副本會被",[15,447,448],{},"永久刪除","，不會移到 Windows 資源回收筒。",[11,451,452],{},"刪除前請確認：",[175,454,455,458,461,464,467],{},[52,456,457],{},"重要文件、照片和影片都能正常開啟；",[52,459,460],{},"已檢查每一個選取項目的完整路徑；",[52,462,463],{},"每組至少保留一份可正常使用的檔案；",[52,465,466],{},"備份已經透過其他方式驗證；",[52,468,469],{},"已排除不了解的應用程式與系統資料夾。",[11,471,472,473,477],{},"無法重新取得的檔案，請先閱讀 ",[399,474,476],{"href":475},"\u002Ftw\u002Fdocs\u002Fsafety","MangoDisk 安全指南","並完成備份。",[34,479,480],{"id":480},"常見問題",[482,483,485],"h3",{"id":484},"windows-11-內建重複檔案搜尋功能嗎","Windows 11 內建重複檔案搜尋功能嗎？",[11,487,488],{},"檔案總管可以依名稱、類型、大小和日期搜尋或排序，適合找出疑似副本。但要確認內容完全相同，仍需要開啟檔案、比較雜湊值，或使用依內容比對的工具。",[482,490,492],{"id":491},"檔名相同就一定是重複檔案嗎","檔名相同就一定是重複檔案嗎？",[11,494,495],{},"不一定。它們可能是放在不同資料夾中的不同版本。相反地，內容完全相同的檔案也可能使用完全不同的名稱。刪除前應該比較內容。",[482,497,499],{"id":498},"可以刪除-windows-或-program-files-裡的重複檔案嗎","可以刪除 Windows 或 Program Files 裡的重複檔案嗎？",[11,501,502],{},"不建議。Windows 和應用程式可能需要相同元件分別放在指定資料夾。一般重複檔案清理應限制在個人資料，以及自己了解的資料夾中。",[482,504,506],{"id":505},"onedrive-裡的重複照片可以刪除嗎","OneDrive 裡的重複照片可以刪除嗎？",[11,508,509],{},"需要先確認同步狀態並開啟照片比較。刪除同步檔案可能同時影響雲端和其他裝置，也要確認其中一份是否為編輯版本或較高解析度的版本。",[482,511,513],{"id":512},"為什麼刪除後釋放的空間比重複檔案總大小少","為什麼刪除後釋放的空間比重複檔案總大小少？",[11,515,516],{},"可釋放空間只應計算多餘副本，不能把每組中需要保留的那一份也算進去。有時還需要等待應用程式釋放檔案，或等 Windows 更新儲存空間統計。",[482,518,520],{"id":519},"備份副本也算重複檔案嗎","備份副本也算重複檔案嗎？",[11,522,523],{},"從內容來看可能完全相同，但用途不同。只要它仍是備份計畫的一部分，就應該保留在獨立的儲存裝置上。",[34,525,526],{"id":526},"官方資料與相關文章",[49,528,529,537,546,553,560],{},[52,530,531,532],{},"Microsoft 支援：",[399,533,536],{"href":534,"rel":535},"https:\u002F\u002Fsupport.microsoft.com\u002Fen-us\u002Fwindows\u002Ffind-your-files-and-apps-in-windows-5c7c8cfe-c289-fae4-f5f8-6b3fdba418d2",[403],"在 Windows 中尋找檔案和應用程式",[52,538,539,540],{},"Microsoft Learn：",[399,541,544],{"href":542,"rel":543},"https:\u002F\u002Flearn.microsoft.com\u002Fen-us\u002Fpowershell\u002Fmodule\u002Fmicrosoft.powershell.utility\u002Fget-filehash?view=powershell-7.6",[403],[22,545,251],{},[52,547,531,548],{},[399,549,552],{"href":550,"rel":551},"https:\u002F\u002Fsupport.microsoft.com\u002Fen-us\u002Fwindows\u002Fexperience\u002Fstorage-filemanagement\u002Ffree-up-drive-space-in-windows",[403],"在 Windows 中釋放磁碟機空間",[52,554,555,556],{},"相關文章：",[399,557,559],{"href":558},"\u002Ftw\u002Fblog\u002Fwindows-11-c-drive-full","Windows 11 C 槽滿了怎麼辦？安全釋放空間的方法",[52,561,555,562],{},[399,563,565],{"href":564},"\u002Ftw\u002Fblog\u002Fis-ai-disk-cleanup-safe","一般使用者不該讓 AI Agent 直接清理磁碟",[11,567,568,569,573],{},"如果檔案總管無法清楚呈現重複關係，可以",[399,570,572],{"href":571},"\u002Ftw","下載 MangoDisk","，在本機掃描完全重複的檔案、比較路徑，再決定要保留哪些副本。",{"title":575,"searchDepth":576,"depth":576,"links":577},"",2,[578,579,580,581,582,583,584,585,586,595],{"id":36,"depth":576,"text":37},{"id":81,"depth":576,"text":82},{"id":169,"depth":576,"text":170},{"id":244,"depth":576,"text":245},{"id":282,"depth":576,"text":283},{"id":312,"depth":576,"text":313},{"id":393,"depth":576,"text":394},{"id":441,"depth":576,"text":442},{"id":480,"depth":576,"text":480,"children":587},[588,590,591,592,593,594],{"id":484,"depth":589,"text":485},3,{"id":491,"depth":589,"text":492},{"id":498,"depth":589,"text":499},{"id":505,"depth":589,"text":506},{"id":512,"depth":589,"text":513},{"id":519,"depth":589,"text":520},{"id":526,"depth":576,"text":526},"Windows 儲存空間","\u002Fimages\u002Fblog\u002Ffind-duplicate-files-windows-11.webp","Windows 電腦將重複的照片、文件與影片分組，並在刪除多餘版本前逐一檢查","了解如何在 Windows 11 找出重複檔案、確認內容是否相同、選擇要保留的版本，並避免誤刪備份、應用程式資料與系統檔案",false,"md",{},true,"\u002Ftw\u002Fblog\u002Ffind-duplicate-files-windows-11","2026-08-24T00:00:00+08:00",{"title":5,"description":599},"tw\u002Fblog\u002Ffind-duplicate-files-windows-11",[609,610,611,612,613],"Windows 11 找出重複檔案","Windows 11 刪除重複檔案","Windows 重複檔案清理","刪除重複照片","釋放 Windows 儲存空間","article-find-duplicate-files-windows-11","EPYsh4H5dAJWo7YGa8Sq_lL7OmLga9CVCKMzNAwTsFA",1787545819758]