1, .android_secure: the product of the official app2sd, stored the relevant software use authentication verification, after deletion of the SD card in the software will not be able to use.
2, Android: storage of important program data, such as google: map of the map cache, mistakenly deleted after the map also need to re-download.
3, backups: contains important backup files, such as contacts exported to the SD card will be imported to this folder.
4. bugtogo: When there is a problem with the system, some report files will be formed and stored in this folder.
5, data: cache data folder, similar to Android. For example, "Screenshot Assistant" screenshots are stored in
data\com.edwardkim.android.screenshotitfull\screenshots.
6. LOST.DIR: Files that are lost or in error on the card will be moved here, and this directory will be automatically generated if you delete it.
7, SystemAppBackup: SystemApp remove (depth of uninstallation) backup system files after the backup file to save the directory.
8, bugreports: upgrading the system or brush, the system and the program occurs compatible with the list of error reports (including memory use all content) will be saved in this file, restart the machine can be deleted.
9, .keepsafe: hidden software, encrypted save file address stored here.
10, .thumbs: browse or use a certain software, as well as the use of a folder used to record the number of times and the contents of the file, randomly generated, the need to regularly and constantly clear, long time not clean up will take up a lot of effective space on the memory card.
11, openfeint: a startup program after opening the connection network, it is widely implanted in the software or games released by mobile platforms, it is the address of record for updating downloads or commenting on feedback information, it can be deleted.
12, com: playback software in the viewing and broadcasting of film and television programs generated by the file will be stored here, can be reflected on the producer feedback information, can be deleted.
13, Download (download): the capital letters of the network connection to download the file directory, the lowercase letters of the phone itself (Bluetooth, near field, etc.) to store the download transfer files, do not accidentally delete.
System tools - the system comes with tools related folder
1, albumart: music album cover cache folder.
2. albums: Cache folder for album thumbnails.
3. cmp: Cache folder for music.
4, Playlists: Cache folder for playlists.
5, DCIM: camera random cache folder, record function set parameters, need to clean up in time. Some third-party camera software to take photos will also be saved here, such as 360 or halo camera.
6, VPN: VPN data cache directory.
7, My documents: the phone to enable a variety of programs and tasks recorded documents, need to be regularly cleared, long time not clean up will take up a large SD card memory.
8. .nomedia: Hidden audio and picture folders in the phone will be displayed here, and can be customized to the relevant folder.
9, media: using the phone call recording software or online browsing video and other media generated by the audio file record archive will be saved here.
10, .medieval_software: When Bluetooth transmission software is enabled, the directory where the record task saves files.
11, extracted: the default decompression directory of the decompression software.
Three-way application category
1. .mobo: Moboplayer's cache file.
2. .QQ: QQ's cache file, which needs to be cleared regularly.
3. .quickoffice: the cache file of quickoffice.
4, .switchpro: switchprowidget (multi-button switch application) cache file.
5. .ucdlres: cache file for UC Thunderbolt.
6, baidu: palm baidu, baidu input method and so on program cache folder.
7. etouch: the cache folder of Ehang.
8, documents: Documents To Go related folders.
9, gameloft: gameloft game data package storage folder.
10, handcent: handcent (super SMS) data folder.
11, handyCurrency: currency exchange rate related folder, installed handycalc (scientific calculator) will have.
12, ireader: ireader cache folder.
13, KingReader: open volume of the cache folder: downloaded files and applications are here: deletion of attention to see
14, LazyList: Applanet's cache directory, use with caution.
15. moji: InkWeather's cache directory.
16, MusicFolders: cache folder generated by poweramp.
17, openfeint: openfeint's cache folder.
18, Picstore: picture browsing software to create a directory.
19, renren: Renren client cache folder.
20, screenshot: screenshot pictures saved directory.
21, ShootMe: shootme screenshot image files saved in the directory.
22, SmartpixGames: the cache folder for games produced by Smartpix Games, such as Jewellust.
23, sogou: the random cache folder for Sogou Pinyin Input Method, which can be deleted.
24, SpeedSoftware: the cache folder of RE File Manager.
25, TalkingFriends: the directory where video files recorded by talking tom (talking tom cat) are saved.
26, Tencent: Tencent software cache directory, such as QQ. (With the above .QQ folder is not the same)
27, TitaniumBackup: Titanium Backup backup program saved in the directory.
28, TunnyBrowser: feels like a cache directory for Dolphin Browser, but why is it called that? TunaBrowser ....
29, UCDLFiles: UC Xunlei download files saved directory.
30, UCDownloads: UC browser download file cache save directory.
31, VIE: Vignette (halo camera) cache directory.
32, yd_historys: the cache directory of the search history of Yudao Dictionary
33, yd_speech: the cache directory of the pronunciation of Yudao Dictionary words.
34, youmicache: deletion will also automatically generated, the cache directory of Yumi ads, advertising programs embedded in its program.
35, Glu: Glu series of games where the packets are stored, such as 3D Deer Hunter, Bold Two Brothers and so on.
36, apadqq-images: QQ for pad cache directory.
37, DunDef: datapack for dungeon keeper.
38, KuwoMusic: the related folder of KuwoMusic.
39, MxBrowser: the cache directory of Oceanis.
40, Camera360: camera camera360's random cache directory, you can clear it regularly.
41, TTPod: the cache directory of Dailymotion.
42, downloaded: brushed MIUI, after the upgrade of the ZIP refresh package, saved in downloaded_rom.
43, .estrongs: when you have used the ES file manager to decompress files, there will be this cache record. It reflects the usage process and can be deleted.
44, silentR: used the background recording software, self-generated audio folder, subfolder phoneCalls, regular management to clear
45, 3D-compass: this is the use of real-world compass software, generated by the scene picture (images and figures more detailed) folder, you can clear.
46, PDF: portable document format, Pdf reader storage folder.
47, Zidan youdao: is the dictionary thesaurus file storage, deleted to re-download thesaurus.
48, Callrecords: the use of third-party mandatory two-way recording software (the phone is not rooted), audio file storage.
49, VPlayer Pro: is MOBO and other video players after the use of records regularly deleted.
50, BeWeather (Videos): is weather software (such as BlackBerry Weather .... etc.) additional download audio or animation icon storage address, deleted will be no picture and no sound display.
51, thumbnails: third-party player to watch handheld mobile video media, storage click pause, random screenshots, and file storage generated when the content.
52, iQuran (meta2): can Quran browse text and audio storage files.
53, Autodesk: cell phone system comes with memory commands to generate folders: storage of images or write a manuscript, you can view, backup or delete.
54, PixlrOMatic: post-effects processing image software Pixlo, storage folder, open can preview to see the effect.
55, mapbar: mapbar navigation map storage files, there must be the main file and specific maps of different areas, the main file deleted to re-down!
56, antTTS: is the use of high German navigation to select the voice type navigation, language download address, delete the voice prompts will be lost.
57, kingsoft: Kingsoft special folder to download and store the thesaurus, update and expand the repertoire (official release of the amendment to add).
58, NightVisionCamera: night camera photo storage address.
59, DSA: electronic dog special folder, the inclusion of various regions of the road probe monitoring location information, will be regularly updated. Has been tested with Gaode, Keliad advance warning, the effect is good.
60, apexlauncher: cutting-edge desktop launcher folder, location in andriod/data/, placed desktop settings backup bak file.