[{"data":1,"prerenderedAt":463},["ShallowReactive",2],{"blog-article-\u002Ftw\u002Fblog\u002Fwindows-installer-folder-too-large":3},{"id":4,"title":5,"author":6,"body":7,"category":443,"cover":444,"coverAlt":445,"description":446,"draft":447,"extension":448,"meta":449,"navigation":450,"path":451,"publishedAt":452,"seo":453,"stem":454,"tags":455,"topics":459,"translationKey":461,"updatedAt":452,"__hash__":462},"articles_tw\u002Ftw\u002Fblog\u002Fwindows-installer-folder-too-large.md","Windows Installer 資料夾太大怎麼辦？哪些檔案不能刪","Harry",{"type":8,"value":9,"toc":428},"minimark",[10,30,38,43,49,60,96,107,117,120,137,141,144,150,170,178,184,256,269,273,276,288,309,319,322,326,329,365,372,376,381,384,388,395,399,406,410,415],[11,12,13,22,23],"p",{},[14,15,16,17,21],"strong",{},"不要為了騰出空間，手動刪除 ",[18,19,20],"code",{},"C:\\Windows\\Installer"," 裡的檔案。"," 這裡存放的是軟體更新、修復和解除安裝時可能用到的安裝快取。誤刪之後，軟體可能暫時還能開啟，直到下次更新或解除安裝時才出現問題。",[24,25,29],"a",{"href":26,"rel":27},"https:\u002F\u002Flearn.microsoft.com\u002Fen-us\u002Ftroubleshoot\u002Fwindows-client\u002Fapplication-management\u002Fmissing-windows-installer-cache",[28],"nofollow","Microsoft 的 Windows Installer 快取說明",[11,31,32,33,37],{},"這個資料夾很大時，先確認它佔了多少 C 槽空間，以及其他地方是否有更適合整理的資料。",[24,34,36],{"href":35},"\u002Ftw","MangoDisk"," 的磁碟空間分析能把資料夾大小放在圖表和清單中，方便比較用量、逐層查看；佔用大，不代表裡面的內容可以刪除。",[39,40,42],"h2",{"id":41},"先看空間分布再決定要整理哪裡","先看空間分布，再決定要整理哪裡",[11,44,45,46,48],{},"只想確認 Installer 的大小，可以在檔案總管的位址列輸入 ",[18,47,20],{},"，查看資料夾的「內容」，確認大小。不必調整隱藏檔案的顯示設定，也不要為了查看容量變更資料夾權限。",[11,50,51,52,55,56,59],{},"若想同時比較個人檔案、下載資料和應用程式資料，開啟 MangoDisk 的",[14,53,54],{},"磁碟空間分析","，選擇 C 槽，再按",[14,57,58],{},"開始分析","：",[61,62,63,75,93],"ol",{},[64,65,66,67,70,71,74],"li",{},"從最上層查看 ",[18,68,69],{},"Windows","、",[18,72,73],{},"Users"," 等資料夾，找出空間主要用在哪裡。",[64,76,77,78,80,81,84,85,88,89,92],{},"進入 ",[18,79,69],{},"，在有權限讀取的範圍內查看 ",[18,82,83],{},"Installer"," 的用量；也可以切換到",[14,86,87],{},"清單","，依",[14,90,91],{},"大小","由大到小排列。",[64,94,95],{},"回到這次分析的起始位置，比較使用者資料夾裡的下載檔案、影片和應用程式資料，再決定要先檢查哪一類。",[11,97,98],{},[99,100],"img",{"alt":101,"decoding":102,"height":103,"loading":104,"src":105,"width":106},"Windows 繁體中文版 MangoDisk 磁碟空間分析，以資料夾清單和樹狀圖顯示 AppData Local 的空間用量","async",1171,"lazy","https:\u002F\u002Fassets.mangodisk.app\u002Fimages\u002Fscreenshots\u002Fwindows\u002Ftw\u002Flight-05-disk-space-analysis.jpg",1746,[11,108,109],{},[110,111,112,113,116],"em",{},"這是 Windows 繁體中文版的介面示例，顯示的是 ",[18,114,115],{},"AppData\\Local","，不是 Installer 的掃描結果。圖中數字代表已使用的空間，不是全部都能清除的容量；也不要整個清空 AppData。",[11,118,119],{},"MangoDisk 可以省下逐一開啟資料夾、查看大小和記錄容量的步驟，但不會因此判定某個 MSI 或 MSP 檔案已經不需要。讀取權限和排除設定也會影響結果；畫面沒有顯示某個資料夾，不代表它沒有佔用空間。",[11,121,122,123,126,127,131,132,136],{},"這裡的步驟只用來查看和定位。磁碟分析中的",[14,124,125],{},"永久刪除","不會經過資源回收筒，不能拿來試刪 Installer 快取。功能與刪除影響請參閱",[24,128,130],{"href":129},"\u002Ftw\u002Fdocs\u002Ffeatures\u002Fdisk-analysis","磁碟空間分析文件","和",[24,133,135],{"href":134},"\u002Ftw\u002Fdocs\u002Fsafety","清理安全指南","。",[39,138,140],{"id":139},"installer-裡是什麼為什麼會愈來愈大","Installer 裡是什麼，為什麼會愈來愈大？",[11,142,143],{},"Windows Installer 是 Windows 用來安裝及維護軟體的一套機制。透過它安裝或更新的軟體，會留下後續維護需要的快取資訊。",[11,145,146,147,149],{},"在 ",[18,148,20],{}," 中，可能會看到兩種檔案：",[151,152,153,159],"ul",{},[64,154,155,158],{},[14,156,157],{},"MSI","：與軟體安裝套件相關的快取檔案。",[64,160,161,164,165],{},[14,162,163],{},"MSP","：修補程式套件，供 Windows Installer 更新已安裝的軟體。",[24,166,169],{"href":167,"rel":168},"https:\u002F\u002Flearn.microsoft.com\u002Fen-us\u002Fwindows\u002Fwin32\u002Fmsi\u002Fpatch-packages",[28],"Microsoft 的修補程式套件說明",[11,171,172,173],{},"軟體持續更新，快取用量也可能增加。檔名不一定看得出是哪個軟體留下的，日期較早也不代表已經失效。不要只憑名稱、日期或大小，就挑出「舊檔案」刪除。",[24,174,177],{"href":175,"rel":176},"https:\u002F\u002Fjpwinsup.github.io\u002Fblog\u002F2026\u002F09\u002F03\u002FUserInterfaceAndApps\u002FInstaller\u002FInstaller\u002F",[28],"日本 Microsoft Windows 支援團隊說明",[11,179,180,181],{},"最容易弄混的是：",[14,182,183],{},"自己下載的安裝檔，和 Windows 的安裝快取，整理方式不同。",[185,186,187,203],"table",{},[188,189,190],"thead",{},[191,192,193,197,200],"tr",{},[194,195,196],"th",{},"位置",[194,198,199],{},"存放的內容",[194,201,202],{},"建議處理方式",[204,205,206,219,230,243],"tbody",{},[191,207,208,213,216],{},[209,210,211],"td",{},[18,212,20],{},[209,214,215],{},"已安裝軟體後續維護所需的安裝快取",[209,217,218],{},"不手動刪除；需要減少用量時，查詢軟體廠商支援的做法",[191,220,221,224,227],{},[209,222,223],{},"自己的下載資料夾",[209,225,226],{},"主動下載的安裝檔、壓縮檔和其他資料",[209,228,229],{},"確定不再需要離線安裝、修復或備份後，逐項整理",[191,231,232,237,240],{},[209,233,234],{},[18,235,236],{},"C:\\Windows\\WinSxS",[209,238,239],{},"Windows 元件存放區",[209,241,242],{},"交由 Windows 支援的維護工具處理，不手動清空",[191,244,245,250,253],{},[209,246,247],{},[18,248,249],{},"C:\\Windows.old",[209,251,252],{},"先前的 Windows 安裝相關檔案",[209,254,255],{},"確定不需要舊資料，也不打算回復先前版本後，再透過 Windows 設定處理",[11,257,258,259,70,264],{},"WinSxS 的元件清理不能套用到 Installer；刪除 Windows.old 也會失去對應的版本回復功能。它們都在系統磁碟上，但用途和處理條件不同。",[24,260,263],{"href":261,"rel":262},"https:\u002F\u002Flearn.microsoft.com\u002Fen-us\u002Fwindows-hardware\u002Fmanufacture\u002Fdesktop\u002Fclean-up-the-winsxs-folder?view=windows-11",[28],"Microsoft 的 WinSxS 清理說明",[24,265,268],{"href":266,"rel":267},"https:\u002F\u002Fsupport.microsoft.com\u002Fen-us\u002Fwindows\u002Fexperience\u002Fstorage-filemanagement\u002Ffree-up-drive-space-in-windows",[28],"Windows 釋放空間說明",[39,270,272],{"id":271},"確實需要減少-installer-用量時先找出對應軟體","確實需要減少 Installer 用量時，先找出對應軟體",[11,274,275],{},"Microsoft 沒有提供一套適用於所有軟體的 Installer 快取手動刪除流程。要減少這部分用量，應先確認相關軟體，再查詢廠商支援的維護方法。",[11,277,278,279,282,283],{},"若需要進一步查明某個 MSI 檔案的來源，Microsoft 介紹了透過 ",[14,280,281],{},"Orca"," 查看套件產品資訊的方式。Orca 是 Windows SDK 提供的 MSI 資料庫編輯器，適合管理員或熟悉安裝套件的使用者進一步調查。",[24,284,287],{"href":285,"rel":286},"https:\u002F\u002Flearn.microsoft.com\u002Fen-us\u002Fwindows\u002Fwin32\u002Fmsi\u002Forca-exe",[28],"Orca 官方文件",[11,289,290,291,294,295,298,299,70,302,70,305,308],{},"先將要查看的 MSI ",[14,292,293],{},"複製到工作資料夾","，再開啟副本的 ",[18,296,297],{},"Property"," 表格，查看 ",[18,300,301],{},"ProductName",[18,303,304],{},"Manufacturer",[18,306,307],{},"ProductVersion"," 等欄位。看完後不要儲存變更，也不要移動、重新命名或編輯原本的快取檔案。MSP 的結構不同，不一定能用相同方法查看。",[11,310,311,312,314,315,136],{},"這些欄位只是尋找軟體及支援窗口的線索，不代表檔案可以刪除；",[18,313,304],{}," 也不等於經過數位簽章驗證的發行者。完整流程與注意事項請參閱",[24,316,318],{"href":175,"rel":317},[28],"Microsoft 支援團隊的唯讀調查步驟",[11,320,321],{},"找到軟體後，再確認廠商是否提供舊修補程式整理或其他維護方案。有些產品解除安裝後再安裝最新版本，可能減少歷史修補資料，但適用條件、備份方式與結果都因軟體而異。不要只為了縮小這個資料夾，就直接重裝重要的應用程式。",[39,323,325],{"id":324},"急需空間時先整理其他已確認可處理的資料","急需空間時，先整理其他已確認可處理的資料",[11,327,328],{},"保留 Installer 快取，不表示只能任由 C 槽一直滿著。可以依序檢查：",[61,330,331,345,355],{},[64,332,333,336,337,340,341],{},[14,334,335],{},"Windows 清理建議","：在 Windows 11 開啟",[14,338,339],{},"設定 → 系統 → 儲存空間 → 清理建議","，逐項查看暫存檔案、大型或未使用的檔案等類別，只選擇已確認不需要的項目。",[24,342,344],{"href":266,"rel":343},[28],"Microsoft 操作說明",[64,346,347,350,351,136],{},[14,348,349],{},"下載資料與大型個人檔案","：用 MangoDisk 查看路徑和大小，先整理自己認得的舊安裝檔、螢幕錄影、影片和壓縮檔。要保留的資料，可以搬到已確認可用的其他儲存位置。參閱",[24,352,354],{"href":353},"\u002Ftw\u002Fblog\u002Fclean-up-downloads-folder-windows-11","下載資料夾整理指南",[64,356,357,360,361,136],{},[14,358,359],{},"不用的軟體與應用程式快取","：透過 Windows 或應用程式本身的功能解除安裝、整理，不直接刪除 Program Files、ProgramData 或整個 AppData。清快取前也要確認範圍和影響，參閱",[24,362,364],{"href":363},"\u002Ftw\u002Fblog\u002Fcompletely-uninstall-apps-windows-11","Windows 應用程式移除指南",[11,366,367,368,136],{},"這些方法處理的是其他空間，不是清空 Installer 的捷徑。若整理後仍然不足，再根據空間分布，評估搬移資料、使用軟體支援的安裝位置調整功能，或擴充儲存空間。完整順序可參閱",[24,369,371],{"href":370},"\u002Ftw\u002Fblog\u002Fwindows-11-c-drive-full","C 槽空間不足指南",[39,373,375],{"id":374},"刪除-installer-檔案的常見問題","刪除 Installer 檔案的常見問題",[377,378,380],"h3",{"id":379},"msi-或-msp-有重複檔案可以只留一份嗎","MSI 或 MSP 有重複檔案，可以只留一份嗎？",[11,382,383],{},"不要這樣處理。即使內容相同，也不能證明安裝維護時只需要其中一個路徑。MangoDisk 的重複檔案功能會找出內容相同的檔案，無法替代 Windows Installer 的相依性判斷。不要把安裝快取當成一般重複下載整理。",[377,385,387],{"id":386},"工具標示孤立檔案就能放心刪嗎","工具標示「孤立檔案」，就能放心刪嗎？",[11,389,390,391],{},"不能只憑這個標籤決定。Microsoft 提醒，使用透過登錄比對判斷「孤立」檔案的工具，或批次清理安裝快取的工具前，應先向相關軟體廠商確認是否支援這種做法。",[24,392,394],{"href":175,"rel":393},[28],"Microsoft 支援團隊說明",[377,396,398],{"id":397},"已經刪了一部分但軟體還能用接下來怎麼辦","已經刪了一部分，但軟體還能用，接下來怎麼辦？",[11,400,401,402],{},"先停止繼續刪除。現在能開啟，不代表下次更新、修復或解除安裝也會成功。記錄刪除範圍、相關軟體及後續錯誤，再依廠商的恢復流程處理。不要從其他電腦複製同名檔案來補齊，因為快取與這台電腦的安裝狀態有關。",[24,403,405],{"href":26,"rel":404},[28],"Microsoft 的快取遺失處理說明",[39,407,409],{"id":408},"用-mangodisk-看清用量再決定下一步","用 MangoDisk 看清用量，再決定下一步",[11,411,412,414],{},[24,413,36],{"href":35}," 是免費、開放原始碼的磁碟清理與分析工具，支援 Windows、macOS 和 Linux。遇到本文的 Windows Installer 問題時，它能幫你比較資料夾用量、找出其他值得檢查的位置；Installer 快取的維護仍應遵循相關軟體廠商的支援方案。",[11,416,417,418,421,422,427],{},"可以從",[24,419,420],{"href":35},"官網","下載，也可以在 ",[24,423,426],{"href":424,"rel":425},"https:\u002F\u002Fgithub.com\u002Fharry0703\u002FMangoDisk",[28],"GitHub","查看原始碼。先確認空間用在哪裡，再處理已經確定不需要的檔案。",{"title":429,"searchDepth":430,"depth":430,"links":431},"",2,[432,433,434,435,436,442],{"id":41,"depth":430,"text":42},{"id":139,"depth":430,"text":140},{"id":271,"depth":430,"text":272},{"id":324,"depth":430,"text":325},{"id":374,"depth":430,"text":375,"children":437},[438,440,441],{"id":379,"depth":439,"text":380},3,{"id":386,"depth":439,"text":387},{"id":397,"depth":439,"text":398},{"id":408,"depth":430,"text":409},"Windows 磁碟清理","\u002Fimages\u002Fblog\u002Fwindows-installer-folder-too-large.webp","上鎖的橙色資料夾保護安裝套件，放大鏡查看磁碟用量圖，旁邊的個人檔案正在分類整理","Windows Installer 資料夾佔用太多空間？用 MangoDisk 查看磁碟用量，分清安裝快取與下載的安裝檔，了解不能手動刪除的原因及後續處理方式。",false,"md",{},true,"\u002Ftw\u002Fblog\u002Fwindows-installer-folder-too-large","2026-10-10T11:35:00+08:00",{"title":5,"description":446},"tw\u002Fblog\u002Fwindows-installer-folder-too-large",[456,457,458],"Windows Installer 資料夾太大","Installer 可以刪除嗎","C 槽空間分析",[460],"windows-cleanup","article-windows-installer-folder-too-large","Igc4C_Tzh6idmQQIfrNFNLFtNRR4ciOVihec1siD8os",1792636710111]