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复得（Fude）桌面数据恢复工具使用指南 · 支持 Windows 10/11（64 位）Fude Data Recovery User Guide · Windows 10/11 (64-bit)

一、快速开始1. Quick Start

  1. 下载安装：从官网「免费下载」获取 Windows 绿色版压缩包，解压后运行「复得.exe」启动。Download: Get the Windows portable zip from "Free Download", extract and run "Fude.exe".
  2. 选择来源：选择「磁盘扫描」或「镜像文件扫描」，也可先制作磁盘镜像再扫描（推荐）。Choose source: Select "Disk Scan" or "Image File Scan", or create a disk image first (recommended).
  3. 免费扫描：完整磁盘扫描免费且不限次数，扫描过程可见实时进度与已发现文件。Free scan: Full disk scan is free and unlimited, with real-time progress and discovered files.
  4. 预览确认：在结果列表查看文件名、大小与缩略图，视频可预览前 3 秒，确认内容。Preview: Check file names, sizes and thumbnails in results; videos support 3-second preview.
  5. 导出恢复：免费版每月可导出 1GB；更高额度需在应用内购买授权码后解锁。Export: Free version allows 1GB/month export; higher quotas require a license key.

全部数据处理均在本地完成，文件不会上传到任何服务器。授权验证仅传输授权码与设备指纹哈希。All data processing is done locally — files are never uploaded to any server. License verification only transmits the license key and a device fingerprint hash.

二、磁盘镜像2. Disk Image

磁盘镜像是把源盘完整复制为镜像文件，之后所有扫描与恢复操作都在镜像上进行，源盘零风险。建议在发现文件丢失后第一时间制作镜像。Disk imaging creates a full copy of the source drive as an image file. All scans and recovery run on the image, keeping the source drive risk-free. It's recommended to create an image immediately after data loss.

  • 支持 RAW 原始镜像与 gzip 压缩镜像，压缩可显著减小镜像体积（视频等已压缩数据收益有限）；Supports RAW and gzip compressed images; compression significantly reduces size (limited benefit for already-compressed data like video).
  • 支持坏扇区跳过：遇到物理坏道时跳过并记录，不中断整个镜像过程；Bad sector skipping: skips and records physical bad sectors without interrupting the imaging process.
  • 支持断点续做：镜像中断后可从中断位置继续，无需重来；Resume support: continue imaging from the interruption point without starting over.
  • MD5 + SHA-256 双重校验：镜像完成后校验完整性，确保镜像与源盘一致。MD5 + SHA-256 dual verification: ensures image integrity matches the source drive.
镜像制作功能完全免费。物理损坏严重的介质建议先联系专业恢复机构评估。Imaging is completely free. For severely damaged media, consult a professional data recovery service first.

三、深度签名扫描3. Deep Signature Scan

不依赖文件系统，直接逐扇区扫描硬盘，通过文件头签名精确定位已删除的文件。即使文件被删除、回收站被清空、分区被格式化，只要数据未被覆写，就有机会找回。Scans disk sector by sector without relying on the file system, locating deleted files by file header signatures. Even after deletion, emptying the recycle bin, or formatting — as long as data hasn't been overwritten, recovery is possible.

  • 内置 289 种常见文件签名，覆盖视频、图片、音频、压缩包、文档等主流格式；Built-in 289 common file signatures covering video, image, audio, archive, and document formats.
  • 支持磁盘扫描与镜像文件扫描两种模式；Supports both disk scan and image file scan modes.
  • 扫描结果按类型分组展示，可查看起始偏移、文件大小与可恢复性评估；Results are grouped by type, showing offset, file size, and recoverability assessment.
  • 对同偏移附近重复命中的片段自动去重，避免结果堆叠。Automatic deduplication of overlapping hits to avoid result clutter.

四、扩展名伪装检测4. Extension Spoofing Detection

文件被改了扩展名（如 RAR 压缩包伪装成 .pdf）后，系统会用错误程序打开。复得自动比对扩展名与文件头签名，识别被伪装的异常文件，并提示恢复真实类型。When a file's extension is changed (e.g., a RAR archive disguised as .pdf), the system opens it with the wrong program. Fude automatically compares extensions with file header signatures to identify spoofed files and restore their true type.

  • 扫描完成后即可在结果中直接查看伪装文件列表；View spoofed files directly in the results after scanning.
  • 支持一键恢复真实扩展名；One-click restoration of the true file extension.
  • 是排查「文件打不开」问题的第一步（详见教程博客《视频打不开 / 损坏了怎么办》）。The first step in troubleshooting "file won't open" issues (see blog post on video repair).

五、专业播放器5. Professional Player

恢复后的视频如果损坏（文件头丢失、索引损坏、数据不连续），常规播放器无法播放。专业播放器可逐帧播放损坏视频，自动跳过损坏区域，先确认画面内容，再决定是否修复。If recovered videos are corrupted (missing headers, broken indexes, discontinuous data), regular players can't play them. The professional player plays damaged videos frame by frame, automatically skipping corrupted areas, so you can confirm the content before deciding to repair.

  • 逐帧/变速预览损坏视频；Frame-by-frame and variable-speed preview of damaged videos.
  • 自动跳过损坏帧，尽量呈现可用画面；Automatically skips corrupted frames to present usable footage.
  • 免费版支持视频前 3 秒预览，完整预览需付费授权。Free version: 3-second preview. Full preview requires a paid license.

六、视频挽救筛查（免费）6. Video Triage (Free)

损坏、打不开的视频是否还值得修复？视频挽救筛查通过只读采样、多点结构分析并对候选文件完整解码验证，不改动原文件，给出可恢复性分级建议，帮你把时间花在最有希望的文件上。Is a corrupted video worth repairing? Video triage performs read-only sampling, multi-point structural analysis, and full decode verification without modifying the original file, providing a recoverability grade to help you focus on the most promising files.

  • 完好可播的视频自动排除，只列出需要关注的文件，并按四档结论分级：修复把握大 / 可尝试挽救 / 修复希望小 / 无法挽救；Intact playable videos are automatically excluded; remaining files are graded: High chance / Worth trying / Unlikely / Beyond recovery.
  • 每片均经完整解码验证，尾部截断等「索引还在但数据残缺」的文件不会被误判为完好；Every file undergoes full decode verification — truncated files with intact indexes but missing data won't be misidentified as intact.
  • 自动识别全盘加密盘雕刻出的无效文件（高熵、无视频特征），避免无谓尝试；Automatically identifies invalid files carved from encrypted drives (high entropy, no video signature) to avoid wasted effort.
  • 支持直接选择整个硬盘（自动排除现存完好视频），或选择恢复软件导出的文件夹（多为雕刻碎片）；两类输入结论不同属正常现象，页面会给出说明；Supports scanning an entire drive (automatically excludes intact videos) or a folder of recovered files (mostly carved fragments); different conclusions for each input type are normal.
  • 完全免费、不限次数，扫描结果与播放器中均可一键发起。Completely free, unlimited — can be launched from scan results or the player with one click.
筛查全程只读（结构采样 + 完整解码验证），不会修改或删除任何文件；视频较多时耗时相应增加，请耐心等待。The triage process is entirely read-only (structural sampling + full decode verification); it does not modify or delete any files. Processing time increases with more videos — please be patient.

七、视频修复7. Video Repair

视频文件由「容器结构」（文件头、索引）和「视频流」（编码数据）两部分组成。文件头丢失、索引（如 MP4 的 moov 块）损坏、尾部截断或拍摄中断时，常规播放器无法解析。视频修复自动重建容器结构；容器严重损坏时，进一步从残缺数据中深度提取 H.264/H.265 视频流并重新封装。A video file consists of a "container" (header, index) and a "video stream" (encoded data). When the header is missing, the index (e.g., MP4 moov atom) is corrupted, the file is truncated, or recording was interrupted, regular players can't parse it. Video repair automatically rebuilds the container; for severely damaged containers, it further extracts H.264/H.265 video streams from residual data and repackages them.

  • 支持 MP4、MOV、AVI、MKV、WebM、FLV、3GP、MPEG-TS/VOB、WMV/ASF 等 20 多种视频格式；Supports 20+ video formats including MP4, MOV, AVI, MKV, WebM, FLV, 3GP, MPEG-TS/VOB, WMV/ASF.
  • 文件头丢失、索引损坏、尾部截断、扩展名与实际类型不符等情况均可尝试；Handles missing headers, corrupted indexes, truncation, and mismatched extensions.
  • 可提供同设备拍摄的参考视频辅助重建编码参数，显著提升严重损坏件的成功率；Reference videos from the same device can assist encoding parameter reconstruction, significantly improving success for severely damaged files.
  • 视频修复为付费版功能，付费版不限修复次数与文件大小；免费版可先用不限次数的视频挽救筛查评估修复价值。Video repair is a paid feature with unlimited repairs and file sizes. Free users can use unlimited video triage to assess repair value first.
建议先做免费的视频挽救筛查，并用专业播放器确认画面内容，再决定是否修复。物理损坏严重的介质请先联系专业恢复机构。Recommend free video triage first, and use the professional player to confirm content before deciding to repair. For severely physically damaged media, contact a professional recovery service.

八、智能密码破解8. Smart Password Recovery

用于找回自己遗忘的压缩包/文档密码。请确认您对所操作数据拥有合法权利——未经授权破解他人加密资料属于违法行为。For recovering your own forgotten archive/document passwords. Please confirm you have legal rights to the data — unauthorized cracking of others' encrypted files is illegal.

  • 内置万级常用密码库：免费版可尝试 Top 100，付费版解锁完整库；Built-in password dictionary with tens of thousands of common passwords: Free version tries Top 100, paid version unlocks the full dictionary.
  • 智能密码生成器：根据生日、姓名、电话自动组合候选密码（如姓名+生日、电话后 6 位等）；Smart password generator: combines birthday, name, phone number to generate candidate passwords (e.g., name+birthday, last 6 digits of phone).
  • 可行性评估：对 RAR5 / AES-256 等强加密且密码无规律的情况如实告知，不承诺必然破解。Feasibility assessment: honestly reports when strong encryption (RAR5/AES-256) with random passwords makes recovery impractical. No guarantee of success.

九、授权码与激活9. License & Activation

版本与价格Editions & Pricing

  • 免费版 ¥0：完整扫描 + 预览 + 每月 1GB 导出 + 视频挽救筛查不限次数（视频修复为付费版功能）；Free ¥0: Full scan + preview + 1GB monthly export + unlimited video triage (video repair is a paid feature).
  • 基础版 ¥29/月：2 台设备；Basic ¥29/mo: 2 devices.
  • 便携版 ¥39/月：最多 10 台设备，适合 U 盘/多台电脑使用；Portable ¥39/mo: Up to 10 devices, ideal for USB drives and multiple PCs.
  • 专业版 ¥59/月：3 台设备，解锁全部功能。Pro ¥59/mo: 3 devices, all features unlocked.

激活与换机Activation & Device Transfer

  • 授权码在应用内购买，激活后与设备指纹绑定；License keys are purchased in-app and bound to device fingerprints upon activation.
  • 换机时先在旧设备注销，再在新设备激活（不占额外设备名额）；When switching devices, deactivate on the old device first, then activate on the new one (no extra device slot used).
  • 超出设备数激活将被要求先解绑已有设备。Activating beyond the device limit will require deactivating an existing device first.

退款政策Refund Policy

  • 未激活订单：支付成功起 7 天内全额退款；Unactivated orders: full refund within 7 days of payment.
  • 已激活但未使用付费功能：激活后 24 小时内全额退款；Activated but unused paid features: full refund within 24 hours of activation.
  • 已使用付费功能：不支持退款，可提交人工审核；Used paid features: no refund by default; manual review available.
  • 退款成功后授权码吊销。申请入口：应用内「我的授权 → 申请退款」。License key is revoked after refund. Apply via: in-app "My License → Request Refund".
恢复效果不保证：数据恢复成功率取决于介质状态、覆写情况、加密强度等多种因素。完整说明见《免责声明》。Recovery is not guaranteed: success depends on media condition, overwriting, encryption strength, and other factors. See Disclaimer for details.